{"id":5686,"date":"2024-04-24T07:45:29","date_gmt":"2024-04-24T07:45:29","guid":{"rendered":"https:\/\/windowsreport.com\/pt\/?p=5686"},"modified":"2025-10-03T18:01:44","modified_gmt":"2025-10-03T15:01:44","slug":"a-protecao-contra-virus-e-ameacas-do-windows-11-nao-funciona-corrigido","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/pt\/a-protecao-contra-virus-e-ameacas-do-windows-11-nao-funciona-corrigido\/","title":{"rendered":"A Prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as do Windows 11 n\u00e3o funciona [CORRIGIDO]"},"content":{"rendered":"<p>Muitos usu\u00e1rios reclamaram recentemente que a prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as do Windows 11 n\u00e3o funciona. Se <a href=\"https:\/\/windowsreport.com\/windows-defender-not-working-windows-11\/\" target=\"_blank\" rel=\"noreferrer noopener\">o Windows Defender n\u00e3o estiver funcionando<\/a> , seu PC ficar\u00e1 vulner\u00e1vel a malware.<\/p><p> N\u00e3o \u00e9 dif\u00edcil perceber por que isso \u00e9 um problema e, no guia de hoje, mostraremos como corrigi-lo.<\/p><h2 class=\"wp-block-heading\"> Por que a Seguran\u00e7a do Windows n\u00e3o abre no Windows 11?<\/h2><p> Listados abaixo est\u00e3o os motivos pelos quais voc\u00ea encontra o problema de prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as do Windows 11 que n\u00e3o funciona:<\/p><ul class=\"wp-block-list\"><li> <strong>Bug na vers\u00e3o atual do Windows 11<\/strong> \u2013 Se for esse o caso, a linha de a\u00e7\u00e3o adequada ser\u00e1 uma atualiza\u00e7\u00e3o do sistema operacional.<\/li><li> <strong>Conflito com antiv\u00edrus de terceiros instalado no PC<\/strong> &#8211; Voc\u00ea deve desabilitar o antiv\u00edrus ou desinstal\u00e1-lo. Para remov\u00ea-lo completamente, voc\u00ea pode usar um software desinstalador.<\/li><li> <strong>Registro corrompido<\/strong> \u2013 Seu registro \u00e9 uma parte delicada do sistema operacional; se estiver corrompido, muitas fun\u00e7\u00f5es do sistema operacional n\u00e3o funcionar\u00e3o mais corretamente. Se voc\u00ea n\u00e3o estiver familiarizado com ele, leia nosso guia sobre como usar o Editor do Registro no Windows 11.<\/li><li> <strong>Sistema infectado com malware<\/strong> \u2013 Neste caso, voc\u00ea deve empregar um antiv\u00edrus poderoso e realizar uma verifica\u00e7\u00e3o completa do sistema.<\/li><li> <strong>Arquivos de sistema corrompidos<\/strong> &#8211; Voc\u00ea pode tentar reparar ou recuperar esses arquivos usando algum utilit\u00e1rio do Windows.<\/li><\/ul><p> Com uma compreens\u00e3o b\u00e1sica do problema subjacente, voc\u00ea deve primeiro identificar se algum deles est\u00e1 causando o problema e seguir para a solu\u00e7\u00e3o relevante. Ent\u00e3o, voc\u00ea acabar\u00e1 economizando um tempo consider\u00e1vel dessa forma.<\/p><p> No entanto, se voc\u00ea n\u00e3o tem ideia do que est\u00e1 causando o erro, execute as corre\u00e7\u00f5es mencionadas neste artigo na mesma sequ\u00eancia.<\/p><h4 class=\"wp-block-heading\"> Que mensagem de erro \u00e9 exibida ao acessar a prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as? <\/h4><figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\"> https:\/\/youtu.be\/U-qt1iHKOgc<\/div><\/figure><p> Os usu\u00e1rios geralmente encontram a seguinte mensagem de erro ao acessar ou usar a prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as no Windows 11: <em>Seu administrador de TI limitou acesso a algumas \u00e1reas deste aplicativo<\/em> .<\/p><p> Se voc\u00ea vir isso na janela do Windows Defender, voc\u00ea veio \u00e0 p\u00e1gina certa. Percorra as se\u00e7\u00f5es a seguir para compreender as causas e as solu\u00e7\u00f5es mais eficazes para o erro.<\/p><h2 class=\"wp-block-heading\"> O que posso fazer se a prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as n\u00e3o funcionar?<\/h2><p> Antes de come\u00e7armos a corrigir esse problema, h\u00e1 algumas verifica\u00e7\u00f5es que voc\u00ea pode querer realizar:<\/p><ul class=\"wp-block-list\"><li> <strong>Reinicie o seu PC<\/strong> &#8211; Em alguns casos, esse problema pode ser causado por uma falha e uma reinicializa\u00e7\u00e3o r\u00e1pida \u00e9 tudo o que \u00e9 necess\u00e1rio para corrigi-lo.<\/li><li> <strong>Instale as atualiza\u00e7\u00f5es mais recentes<\/strong> &#8211; \u00c0s vezes, certos componentes podem encontrar falhas e isso pode causar problemas como esses. Manter o Windows atualizado \u00e9 uma \u00f3tima maneira de corrigir esse problema.<\/li><li> <strong>Verifique a data e a hora<\/strong> &#8211; Problemas como esse podem ocorrer se a data ou a hora n\u00e3o estiverem corretas no seu PC. Para consertar, voc\u00ea precisa alterar a hora no Windows 11 e certificar-se de que est\u00e1 correta.<\/li><li> <strong>Execute uma restaura\u00e7\u00e3o do sistema<\/strong> &#8211; \u00c9 poss\u00edvel que aplicativos ou configura\u00e7\u00f5es instaladas estejam causando esse problema. Para corrigir isso, crie um ponto de restaura\u00e7\u00e3o e restaure seu sistema.<\/li><\/ul><h3 class=\"wp-block-heading\"> 1. Execute uma verifica\u00e7\u00e3o SFC (Verificador de arquivos do sistema)<\/h3><ol class=\"wp-block-list\"><li> Pressione <kbd>Windows<\/kbd> + <kbd>X<\/kbd> para abrir o <strong>menu de acesso r\u00e1pido<\/strong> .<\/li><li> Selecione <strong>Terminal do Windows (Admin)<\/strong> na lista de op\u00e7\u00f5es que aparece. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/YFI6BDZ7Nd.jpg\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768511\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/YFI6BDZ7Nd.jpg\" alt=\"Terminal do Windows\"><\/a><\/li><li> Clique em <strong>Sim<\/strong> no <em>prompt do UAC<\/em> que aparece.<\/li><li> Em seguida, clique na seta voltada para baixo na parte superior e selecione <strong>Prompt de Comando<\/strong> no menu do <em>Terminal do Windows<\/em> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/WindowsTerminal_DR5df1K6QY.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768512\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/WindowsTerminal_DR5df1K6QY.png\" alt=\"iniciar o prompt de comando\"><\/a><\/li><li> Digite ou cole o seguinte comando e pressione Enter para executar a verifica\u00e7\u00e3o SFC:<br> <code><strong>sfc \/scannow<\/strong><\/code> <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/WindowsTerminal_EoUEiSDofB.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768515\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/WindowsTerminal_EoUEiSDofB.png\" alt=\"Verifica\u00e7\u00e3o SFC\"><\/a><\/li><li> Aguarde a conclus\u00e3o da verifica\u00e7\u00e3o, reinicie o computador e verifique se o erro foi corrigido.<\/li><\/ol><p> A verifica\u00e7\u00e3o SFC (System File Checker) \u00e9 usada para identificar arquivos corrompidos do sistema e substitu\u00ed-los por sua c\u00f3pia em cache armazenada no sistema. A execu\u00e7\u00e3o da verifica\u00e7\u00e3o provavelmente resolver\u00e1 o problema se o Windows Defender estiver corrompido.<\/p><p> Para uma verifica\u00e7\u00e3o completa dos arquivos do sistema, recomendamos o uso de uma ferramenta de terceiros especializada em localizar e reparar arquivos de sistema corrompidos ou danificados.<\/p><h3 class=\"wp-block-heading\"> 2. Desinstale qualquer outro antiv\u00edrus de terceiros<\/h3><ol class=\"wp-block-list\"><li> Pressione <kbd>Windows<\/kbd> + <kbd>I<\/kbd> para iniciar <strong>Configura\u00e7\u00f5es<\/strong> .<\/li><li> Selecione a guia <strong>Aplicativos<\/strong> \u00e0 esquerda. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_TNFTqryXSI.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768295\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_TNFTqryXSI.png\" alt=\"Aplicativos\"><\/a><\/li><li> Selecione <strong>Aplicativos e recursos<\/strong> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_kYsx9QF2Fi.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768296\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_kYsx9QF2Fi.png\" alt=\"Aplicativos e recursos\"><\/a><\/li><li> Clique nas <strong>retic\u00eancias<\/strong> ao lado do antiv\u00edrus que deseja remover e selecione <em>Desinstalar<\/em> no menu suspenso. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_cRuIRwIj8V.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768299\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_cRuIRwIj8V.png\" alt=\"Desinstalar aplicativo\"><\/a><\/li><li> Clique em <strong>Desinstalar<\/strong> no prompt.<\/li><\/ol><p> Se voc\u00ea tiver um antiv\u00edrus de terceiros instalado no PC, ele poder\u00e1 entrar em conflito com o funcionamento da prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as.<\/p><p> Al\u00e9m disso, \u00e0s vezes, quando o Windows detecta uma ferramenta semelhante instalada no sistema, ele desativa o Windows Defender para evitar que os dois entrem em conflito. Portanto, desinstalar o antiv\u00edrus deve ser uma abordagem direta para solucionar o erro.<\/p><h3 class=\"wp-block-heading\">3. Utilize o PowerShell<\/h3><ol class=\"wp-block-list\"><li> Pressione a tecla <kbd>Windows<\/kbd> + <kbd>S<\/kbd> e digite powershell. Selecione <strong>Executar como administrador<\/strong> .<br> <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2023\/01\/powershell-search-w11.jpg\"><img decoding=\"async\" width=\"781\" height=\"721\" class=\"alignnone wp-image-1112461 size-full\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2023\/01\/powershell-search-w11.jpg\" alt=\"\"><\/a><\/li><li> Quando o PowerShell abrir, digite o seguinte comando: <code><strong>Set-MpPreference -UILockdown 0<\/strong><\/code> <i data-stringify-type=\"italic\"><br><a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2023\/01\/Set-MpPreference-UILockdown-0.png\"><img decoding=\"async\" width=\"986\" height=\"519\" class=\"alignnone size-full wp-image-1112458\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2023\/01\/Set-MpPreference-UILockdown-0.png\" alt=\"\"><\/a><\/i><\/li><li> Pressione <kbd>Enter<\/kbd> . <\/li><\/ol><h3 class=\"wp-block-heading\"> 4. Ative a prote\u00e7\u00e3o em tempo real<\/h3><ol class=\"wp-block-list\"><li> Pressione <kbd>Windows<\/kbd> + <kbd>S<\/kbd> para abrir o menu <strong>Pesquisar<\/strong> .<\/li><li> Digite <strong>Seguran\u00e7a do Windows<\/strong> no campo de texto e clique no resultado da pesquisa relevante. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/explorer_qL4glgpbpG.jpg\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-769034\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/explorer_qL4glgpbpG.jpg\" alt=\"Inicie a Seguran\u00e7a do Windows\"><\/a><\/li><li> Selecione <strong>Prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as<\/strong> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_i7TguUanGc.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768323\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_i7TguUanGc.png\" alt=\"Prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as\"><\/a><\/li><li> Clique em <strong>Gerenciar configura\u00e7\u00f5es<\/strong> em <em>Configura\u00e7\u00f5es de prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as<\/em> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_75I7oS0EPU.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768325\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_75I7oS0EPU.png\" alt=\"Gerenciar configura\u00e7\u00f5es\"><\/a><\/li><li> Ative a altern\u00e2ncia para <strong>Prote\u00e7\u00e3o em tempo real<\/strong> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_xFpeGR9nOZ.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768326\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_xFpeGR9nOZ.png\" alt=\"ativar a altern\u00e2ncia\"><\/a><\/li><\/ol><p> Depois de ativar a prote\u00e7\u00e3o em tempo real, voc\u00ea poder\u00e1 acessar a prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as. Por exemplo, a altern\u00e2ncia pode ser desativada manualmente por voc\u00ea ou pelo pr\u00f3prio Windows se detectar um antiv\u00edrus de terceiros. <\/p><section id=\"related-articles-block_ba0dfae9f25968e46adfe4bcb997d67e\" class=\"related-articles\">\n\t<strong class=\"related-articles__title\">Read more about this topic<\/strong>\n\t<div class=\"related-articles__wrapper\">\n\t\t<ul>\n\t\t\t<li><a href=\"https:\/\/windowsreport.com\/fix-windows-10-update-security\/\" rel=\"noopener noreferrer\" target=\"_blank\">Fix: Windows Update u0026amp; Security not opening in Windows 10\/11<\/a><\/li><li><a href=\"https:\/\/windowsreport.com\/pt\/nao-e-possivel-alterar-a-prioridade-no-gerenciador-de-tarefas-no-windows-10-11\/\" rel=\"noopener noreferrer\" target=\"_blank\">N\u00e3o \u00e9 poss\u00edvel\u00a0alterar a\u00a0prioridade\u00a0no Gerenciador de Tarefas no Windows 10\/11<\/a><\/li><li><a href=\"https:\/\/windowsreport.com\/pt\/vpn-desconectando-wifi-5-solucoes\/\" rel=\"noopener noreferrer\" target=\"_blank\">VPN desconectando WiFi: 5 solu\u00e7\u00f5es<\/a><\/li>\t\t<\/ul>\n\t<\/div>\n<\/section><h3 class=\"wp-block-heading\"> 5. Repare o aplicativo Seguran\u00e7a do Windows<\/h3><ol class=\"wp-block-list\"><li> Pressione <kbd>Windows<\/kbd> + <kbd>I<\/kbd> para iniciar <strong>Configura\u00e7\u00f5es<\/strong> .<\/li><li> Selecione <strong>Aplicativos<\/strong> nas guias \u00e0 esquerda e clique em <em>Aplicativos e recursos<\/em> \u00e0 direita. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_3CF1aAhZ4w.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768403\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_3CF1aAhZ4w.png\" alt=\"Aplicativos e recursos\"><\/a><\/li><li>Localize o aplicativo <strong>Seguran\u00e7a do Windows<\/strong> , clique nas <em>retic\u00eancias<\/em> ao lado dele e selecione <strong>Op\u00e7\u00f5es avan\u00e7adas<\/strong> no menu suspenso. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_2czS5LvVE6.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768405\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_2czS5LvVE6.png\" alt=\"Op\u00e7\u00f5es avan\u00e7adas\"><\/a><\/li><li> Clique em <strong>Reparar<\/strong> em <em>Redefinir<\/em> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_EjMc2iDfGW.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768406\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/ApplicationFrameHost_EjMc2iDfGW.png\" alt=\"Aplicativo de reparo\"><\/a><\/li><li> Aguarde a conclus\u00e3o do processo de reparo.<\/li><\/ol><p> Se um programa apresentar erros ao iniciar ou durante seu funcionamento, repar\u00e1-lo pode ajudar. Quando voc\u00ea corrige um aplicativo, o Windows examina sua instala\u00e7\u00e3o, identifica e substitui quaisquer arquivos problem\u00e1ticos e verifica suas entradas no Registro.<\/p><p> Este \u00e9 um m\u00e9todo r\u00e1pido de solu\u00e7\u00e3o de problemas; voc\u00ea n\u00e3o perde nenhum dado ou configura\u00e7\u00e3o definida.<\/p><h3 class=\"wp-block-heading\"> 6. Execute uma verifica\u00e7\u00e3o de malware<\/h3><p> Em muitos casos, foi relatado que malware ou v\u00edrus estavam causando problemas no lan\u00e7amento da prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as. No entanto, como o aplicativo Windows Defender n\u00e3o est\u00e1 funcionando, voc\u00ea deve usar outra ferramenta para executar uma verifica\u00e7\u00e3o.<\/p><p> Escolha um dos melhores softwares antiv\u00edrus de terceiros para Windows 11 e instale-o. Depois de baixar o programa, execute uma verifica\u00e7\u00e3o de malware para descobrir e eliminar\/colocar em quarentena quaisquer v\u00edrus presentes no sistema.<\/p><p> Para garantir que nada tente impedir o funcionamento da prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as, uma verifica\u00e7\u00e3o de malware \u00e9 essencial. Para uma verifica\u00e7\u00e3o de malware r\u00e1pida e avan\u00e7ada, recomendamos <a href=\"https:\/\/out.reflectormedia.com\/c?o=20566372&amp;m=17686&amp;a=758367&amp;aff_sub1=[current_url]&amp;aff_sub2=Native\" target=\"_blank\" rel=\"noreferrer noopener nofollow\"><strong>o ESET NOD 32<\/strong><\/a> .<\/p><p> ESET \u00e9 um antiv\u00edrus completo com recursos de seguran\u00e7a muito avan\u00e7ados que sempre proteger\u00e3o voc\u00ea contra amea\u00e7as. Al\u00e9m disso, alguns recursos de seguran\u00e7a incr\u00edveis permitem explorar qualquer coisa online com seguran\u00e7a.<\/p><h3 class=\"wp-block-heading\"> 7. Reinicie o servi\u00e7o Security Center<\/h3><ol class=\"wp-block-list\"><li> Pressione <kbd>Windows<\/kbd> + <kbd>R<\/kbd> para iniciar o comando <strong>Executar<\/strong> .<\/li><li> Digite <strong>services.msc<\/strong> no campo de texto e clique em <em>OK<\/em> para iniciar o aplicativo <strong>Servi\u00e7os<\/strong> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/explorer_KSWDiK3S4n.jpg\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768543\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/explorer_KSWDiK3S4n.jpg\" alt=\"Lan\u00e7ar servi\u00e7os\"><\/a><\/li><li> Localize o servi\u00e7o <strong>Security Center<\/strong> , <em>clique com o bot\u00e3o direito<\/em> nele e selecione <strong>Reiniciar<\/strong> no menu de contexto. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/mmc_qohs3B2a00.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768544\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/mmc_qohs3B2a00.png\" alt=\"reiniciar o servi\u00e7o da central de seguran\u00e7a\"><\/a><\/li><li> Em seguida, reinicie o computador e verifique se o problema foi corrigido. <\/li><\/ol>\t\t<section class=\"note-box\">\n\t\t\t<div class=\"note-box__icon\">\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/windowsreport.com\/pt\/wp-content\/themes\/windowsreport\/assets\/images\/svg\/note-pencil.svg\" alt=\"Note icon\" \/>\n\t\t\t\t<span>NOTE<\/span>\n\t\t\t<\/div>\n\t\t\t<div class=\"note-box__content\">\n\t\t\t\tThe services are listed in alphabetical (or reverse-alphabetical) order; thus, locating the Security Center service shouldn&#8217;t be challenging.\t\t\t<\/div>\n\t\t<\/section>\n\t\t<h3 class=\"wp-block-heading\"> 8. Fa\u00e7a modifica\u00e7\u00f5es no Registro<\/h3><ol class=\"wp-block-list\"><li>Pressione <kbd>Windows<\/kbd> + <kbd>R<\/kbd> para iniciar o comando <strong>Executar<\/strong> .<\/li><li> Digite <strong>regedit<\/strong> no campo de texto e clique em <em>OK<\/em> para iniciar o <strong>Editor do Registro<\/strong> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/explorer_7HZJwclYT6.jpg\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768566\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/explorer_7HZJwclYT6.jpg\" alt=\"iniciar o editor do Registro\"><\/a><\/li><li> Clique em <strong>Sim<\/strong> no <em>prompt do UAC<\/em> que aparece.<\/li><li> Cole o seguinte caminho na barra de endere\u00e7o na parte superior e pressione <kbd>Enter<\/kbd> :<br> <code><strong>HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersionImage File Execution Options<\/strong><\/code> <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/regedit_9YmlbtIXMO.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768567\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/regedit_9YmlbtIXMO.png\" alt=\"insira o endere\u00e7o\"><\/a><\/li><li> Se voc\u00ea encontrar qualquer uma das tr\u00eas entradas, clique com o bot\u00e3o direito em <strong>MSASCui.exe<\/strong> , <strong>MpCmdRun.exe<\/strong> ou <strong>MsMpEnd.exe<\/strong> e selecione <em>Excluir<\/em> .<\/li><li> Caso as entradas n\u00e3o estejam presentes, v\u00e1 para a pr\u00f3xima corre\u00e7\u00e3o.<\/li><\/ol><p> Certos v\u00edrus s\u00e3o conhecidos por criar entradas no Registro que entram em conflito com o funcionamento do Windows Defender. Se isso estiver impedindo voc\u00ea de acessar a prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as, excluir as entradas acima resolver\u00e1 o problema.<\/p><p> Se o m\u00e9todo acima n\u00e3o resolver o problema, voc\u00ea tamb\u00e9m pode tentar consertar os itens corrompidos do registro.<\/p><h3 class=\"wp-block-heading\"> 9. Habilite o Windows Defender usando Registro <\/h3>\t\t<section class=\"note-box\">\n\t\t\t<div class=\"note-box__icon\">\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/windowsreport.com\/pt\/wp-content\/themes\/windowsreport\/assets\/images\/svg\/note-pencil.svg\" alt=\"Note icon\" \/>\n\t\t\t\t<span>NOTE<\/span>\n\t\t\t<\/div>\n\t\t\t<div class=\"note-box__content\">\n\t\t\t\tIt would help if you executed this fix only after trying the ones listed earlier. Also, we recommend being extra cautious when making changes to the Registry since a minor lapse on your end can damage the PC and render it unusable.\t\t\t<\/div>\n\t\t<\/section>\n\t\t<ol class=\"wp-block-list\"><li> Pressione <kbd>Windows<\/kbd> + <kbd>S<\/kbd> para abrir o <strong>menu Pesquisar<\/strong> .<\/li><li> Digite <strong>o Editor do Registro<\/strong> no campo de texto na parte superior e clique no resultado da pesquisa relevante. <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/explorer_84adfPVxc6.jpg\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-769039\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/explorer_84adfPVxc6.jpg\" alt=\"Inicie o Editor do Registro\"><\/a><\/li><li> Cole o seguinte caminho na barra de endere\u00e7o na parte superior e pressione <kbd>Enter<\/kbd> : <code><strong>HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows Defender<\/strong><\/code> <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/regedit_ZpP2y8ghsC.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768581\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/regedit_ZpP2y8ghsC.png\" alt=\"v\u00e1 para este caminho\"><\/a><\/li><li> Localize a entrada <strong>DisableAntiSpyware<\/strong> e defina seu valor como <em>0<\/em> .<\/li><li> Se a entrada n\u00e3o estiver l\u00e1, clique com o bot\u00e3o direito no espa\u00e7o, passe o cursor sobre Novo e selecione o <em>valor DWORD (32 bits)<\/em> no menu. Nomeie a entrada como <strong>DisableAntiSpyware<\/strong> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/regedit_H9OHBys8Xg.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768582\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/regedit_H9OHBys8Xg.png\" alt=\"criar uma nova entrada\"><\/a><\/li><li> Clique duas vezes na entrada e insira <strong>0<\/strong> em <em>Dados do valor<\/em> . <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/regedit_HqSrCOWoJH.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-768583\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/regedit_HqSrCOWoJH.png\" alt=\"alterar o valor da chave\"><\/a><\/li><\/ol><p>Ap\u00f3s fazer altera\u00e7\u00f5es no Registro, verifique se o problema com o Windows Defender foi resolvido e voc\u00ea pode acess\u00e1-lo e fazer altera\u00e7\u00f5es.<\/p><h3 class=\"wp-block-heading\"> O que posso fazer se as corre\u00e7\u00f5es listadas aqui n\u00e3o funcionarem?<\/h3><p> Em primeiro lugar, esse \u00e9 um cen\u00e1rio improv\u00e1vel. No entanto, se as solu\u00e7\u00f5es n\u00e3o funcionaram, um ponto de restaura\u00e7\u00e3o n\u00e3o estava dispon\u00edvel ou a restaura\u00e7\u00e3o do sistema n\u00e3o ajudou, entre outras coisas, voc\u00ea sempre pode <a href=\"https:\/\/windowsreport.com\/windows-11-factory-settings\/\" target=\"_blank\" rel=\"noreferrer noopener\">redefinir o Windows 11 para as configura\u00e7\u00f5es de f\u00e1brica.<\/a> <a href=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/SystemSettingsAdminFlows_Ty6iUqW7Gl.png\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" class=\"wp-image-769044\" style=\"width: 900px\" src=\"https:\/\/windowsreport.com\/wp-content\/uploads\/2021\/10\/SystemSettingsAdminFlows_Ty6iUqW7Gl.png\" alt=\"Reiniciar PC\"><\/a><\/p><p> Ao fazer isso, o PC retorna ao est\u00e1gio inicial. Em palavras simples, na mesma etapa, voc\u00ea o usou pela primeira vez em termos de configura\u00e7\u00f5es e dados armazenados.<\/p><h3 class=\"wp-block-heading\"> Por que a prote\u00e7\u00e3o contra amea\u00e7as de v\u00edrus foi interrompida?<\/h3><p> Na maioria dos casos, quando voc\u00ea se depara com esse erro, \u00e9 porque alguns arquivos de sistema est\u00e3o corrompidos. Portanto, sempre recomendamos executar uma verifica\u00e7\u00e3o SFC e DISM para procurar qualquer corrup\u00e7\u00e3o em todo o sistema e repar\u00e1-la para resolver algumas dificuldades, como o problema de seguran\u00e7a do Windows.<\/p><p> As corre\u00e7\u00f5es acima devem resolver o problema de n\u00e3o funcionamento da prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as do Windows 11 e colocar tudo em funcionamento.<\/p><p> Muitos ainda est\u00e3o se perguntando se o Windows 11 precisa de antiv\u00edrus e, na maioria dos casos, o Windows Defender far\u00e1 seu trabalho perfeitamente. No entanto, alguns usu\u00e1rios preferem usar software de terceiros.<\/p><p> Deixe-nos saber qual corre\u00e7\u00e3o funcionou para voc\u00ea na se\u00e7\u00e3o de coment\u00e1rios abaixo.<\/p>","protected":false},"excerpt":{"rendered":"<p>Muitos usu\u00e1rios reclamaram recentemente que a prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as do Windows 11 n\u00e3o funciona. Se o Windows Defender n\u00e3o estiver funcionando , seu PC ficar\u00e1 vulner\u00e1vel a malware. N\u00e3o \u00e9 dif\u00edcil perceber por que isso \u00e9 um problema e, no guia de hoje, mostraremos como corrigi-lo. Por que a Seguran\u00e7a do Windows n\u00e3o [&hellip;]<\/p>\n","protected":false},"author":2284,"featured_media":5687,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[55],"tags":[102,289],"work":[],"class_list":["post-5686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriais","tag-antivirus","tag-windows-defender"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>A Prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as do Windows 11 n\u00e3o funciona [CORRIGIDO] - WindowsReport<\/title>\n<meta name=\"description\" content=\"A prote\u00e7\u00e3o contra v\u00edrus e amea\u00e7as do Windows 11 n\u00e3o est\u00e1 funcionando? 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