“Your connection is not secure” [Fix]

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Your security is one of the most important things while browsing the Internet. However, sometimes there might be some issues that can cause Your connection is not secure message to appear. This message can prevent you from accessing your favorite websites, so today we’re going to show you how to fix it on Windows 10.

“Your connection is not secure” message, how to fix it?

Fix – “Your connection is not secure”

Solution 1 – Check if your date and time is correct

One of the most common causes for Your connection is not secure message is incorrect date and time. Many websites use security certificates, and each certificate has its own expiration date. If time or date on your PC isn’t correct, your browser might detect the required certificate as outdated, thus giving you this message.

However, you can easily fix the problem simply by updating your date and time. To do that on Windows 10, you need to follow these simple steps:

  1. Right click the clock in bottom right corner and click on Adjust date/time.
  2. Date and time window will now appear. Turn off Set time automatically option.
  3. Wait for a few moments and turn this option back on again. Alternatively, you can adjust the time and date manually by clicking the Change button.

If you don’t want to use Settings app, you can adjust the time and date by doing the following:

  1. Press Windows Key + S and enter date. Select Date and Time from the list of results.
  2. When Date and Time window opens, click on Change date and time button.
  3. Now set the correct date and time and save changes.

After setting the correct date, restart your browser and check if the problem is resolved. If your date and time becomes incorrect again, you might have problems with time synchronization or with your computer battery.

Solution 2 – Disable your antivirus software

If you want to protect yourself from online threats, it’s important that you have an antivirus software installed. Although using an antivirus is mandatory, sometimes certain antivirus tools can interfere with your Internet connection and cause Your connection is not secure message to appear. In addition to this message, your antivirus can also prevent you from accessing your favorite websites.

To troubleshoot the issue, first you need to temporarily disable your antivirus software. After doing that, try to access the problematic website again. If the issue doesn’t appear it means that the problem was caused by your antivirus. In most cases the culprit is SSL or HTTPS scanning feature. Therefore we recommend that you check your antivirus settings and disable this feature completely.

Users reported that this problem appears while using ESET or BitDefender. To disable the problematic features in ESET, do the following:

  1. In ESET navigate to Advanced setup.
  2. Expand Web and email section and select SSL.
  3. Now set SSL protocol to Do not scan SSL protocol.
  4. Save changes.

To disable this feature in BitDefender, do the following:

  1. Open BitDefender.
  2. Go to Privacy Settings and click on Disable Scan SSL.

The issue also appears if you’re using Avast, but you can solve it by following these steps:

  1. Open Avast.
  2. Navigate to Settings > Active Protection.
  3. Click on Customize next to Web Shield.
  4. Uncheck Enable HTTPS Scanning option and click OK to save changes.

In Bullguard antivirus you can disable this feature by following these steps:

  1. Open Bullguard dashboard.
  2. Click on Antivirus settings > Browsing.
  3. Uncheck Show safe results option for the websites that are giving you the error message.

Regarding Kaspersky, you can disable this feature by doing the following:

  1. Open Kaspersky dashboard.
  2. Click on Settings in bottom right corner.
  3. Click on Additional and then click on Network.
  4. Now navigate to Encrypted connections scanning section and check Do not scan encrypted connections. In addition, you can go to Advanced Settings section and click the Install Certificate button. Now follow the instructions on the screen to install the certificate again.We have to mention that older versions of Kaspersky don’t have this option. Therefore you need to find and disable Scan encrypted connections option instead.
  5. After you’re done, restart your PC.

If your antivirus doesn’t have this feature available, you might have to remove your antivirus and switch to a different one.

Solution 3 – Delete cert8.db file

According to users, sometimes Your connection is not secure message can appear if cert8.db file is corrupted. This file is in charge of storing certificates, but if the file is corrupted you need to delete it. We have to mention that Firefox will recreate the file, so you can delete it without any problems. To delete this file, do the following:

  1. Close Firefox completely.
  2. Press Windows Key + R and enter %appdata%. Press Enter or click OK.
  3. When Roaming folder opens, navigate to \Mozilla\Firefox\Profiles\.
  4. Select your profile folder and locate cert8.db file. Delete the file.
  5. Restart Firefox and check if the problem is resolved.

Solution 4 – Disable Adguard

Adguard is a useful software that can prevent ads from appearing online. Although this tool is great, sometimes it can interfere with your connection and cause Your connection is not secure message to appear. According to users, you can easily resolve this problem simply by disabling Adguard. To do that, first you need to close Firefox completely. After that, close Adguard, wait for a few moments and turn it back on again. After doing that, start Firefox again and check if the problem is resolved.

If the issue appears again, you might want to consider disabling Adguard permanently or switching to another adblocking software.

Solution 5 – Check your certificates

According to users, Your connection is not secure message can occur due to problems with your certificates. Users reported that this problem occurs with Firefox and Kaspersky and in order to fix this problem you need to add the Kaspersky certificate again. To do that, follow these steps:

  1. Locate (fake)Kaspersky Anti-Virus Personal Root Certificate.cer file. By default, it should be located in C:\ProgramData\Kaspersky Lab\AVP16.0.0\Data\Cert\ directory. Keep in mind that the directory path might be different depending on the version of the software that you use.If you can’t find ProgramData directory, you need to show hidden files and folders. To do that, simply open File Explorer and click on View tab and check Hidden items option.
  2. Start Firefox and click the Menu button in the top right corner. Select Options from the menu.
  3. In the right pane click on Advanced. Navigate to Certificates tab and click on View Certificates button.
  4. List of certificates will now appear. Navigate to AO Kaspersky Lab section and select Kaspersky Anti-Virus Personal Root. Click Delete or Distrust button.
  5. Follow the instructions on the screen to remove the certificate.
  6. After deleting the certificate, click the Import button. Locate Kaspersky Anti-Virus Personal Root Certificate.cer file and follow the instructions to add it.

After adding a new Kaspersky certificate, check if the problem still persists. This solution applies only to Kaspersky, but if you use a different antivirus software you might be able to solve this problem by using a similar method.

Solution 6 – Install 32-bit version of Firefox

According to users, Your connection is not secure message can appear if you’re using 64-bit version of Firefox with Kaspersky. Apparently, certain versions of Kaspersky aren’t fully compatible with 64-bit versions of Firefox. To fix the issue, you need to uninstall 64-bit version of Firefox and install 32-bit version instead.

To see if you’re using 64-bit version of Firefox, do the following:

  1. Click the Menu button in the top right corner and click the question mark icon at the bottom.
  2. Choose About Firefox from the menu.
  3. Now you’ll see the Firefox version that you’re using. If you have 64-bit version, uninstall Firefox and download 32-bit version instead.

In addition to reinstalling Firefox, you can try to update both Firefox and your antivirus. According to users, this was an issue in the earlier versions of Kaspersky. To fix the problem, it’s highly recommended that you update your antivirus and check if that solves the problem. Keep in mind that this problem can affect other antivirus tools, therefore it’s important that you download and install the latest version of your antivirus software.

Solution 7 – Restart your router

Sometimes Your connection is not secure message can appear due to problems with your router. To fix those problems you just have to restart your router. To do that, simply press the power button on your router and wait for 30 seconds. Now press the power button again and wait until your router boots completely. After that, check if the issue still persists.

Solution 8 – Reinstall certificates in Adguard

We mentioned in one of our previous solutions that Adguard can cause Your connection is not secure message to appear. Several users reported that they fixed the problem simply by reinstalling certificates in Adguard. This is a simple procedure, and you can do it by following these steps:

  1. Close all open browsers.
  2. Open Adguard.
  3. Navigate to General Settings.
  4. Scroll all the way down and click on Reinstall Certificates.

After reinstalling certificates the issue should be completely resolved.

Solution 9 – Disable Family Safety feature

Windows 10 allows you to use your Microsoft account to sign in to Windows. Thanks to this feature, you can protect your account using Family Safety option. This feature is great if you want to protect your household members from malicious websites. However, this feature can also interfere with your Internet connection and cause Your connection is not secure message

to appear. To fix this issue, you need to disable Family Safety by following these steps:

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  1. Navigate to http://account.microsoft.com/family.
  2. Sign in with your Microsoft account.
  3. Locate the account that you want to remove and click the Remove button. To remove adult account, be sure to remove all child accounts beforehand.

After doing that, check if the problem is resolved.

Solution 10 – Check for malware

Sometimes malicious applications can change your system settings. As a result, Your connection is not secure message can appear. To fix this problem we advise you to scan your PC for malware and remove any suspicious software. After the scan, check if the problem is completely resolved.

Solution 11 – Bypass the warning

If the Your connection is not secure message appears while trying to visit a trusted website, you can simply bypass the warning. To do that, follow these steps:

  1. When the message appears, click on Advanced.
  2. Now click on Add Exception.
  3. Click on Confirm Security Exception. If you want, you can view more information regarding the problematic certificate by clicking the View button.

Solution 12 – Change Fiddler settings

Users reported that Your connection is not secure message appears while using Fiddler. If you don’t use this service, you can skip this solution completely. To fix this problem in Fiddler, you need to do the following:

  1. Click Tools > Fiddler Options.
  2. Navigate to the HTTPS tab.
  3. Make sure that the text says Certificates generated by CertEnroll engine.
  4. Click on Actions > Reset Certificates. Wait for the process to complete.
  5. Accept all prompts.

After doing that, the issue should be completely resolved.

Your connection is not secure message will prevent you from accessing your favorite websites. However, you should be able to solve this issue by using one of our solutions.

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