FIX: Outlook 2016 crashes when opening [Event ID 1000]

by Ivan Jenic
Ivan Jenic
Ivan Jenic
Troubleshooting Expert
Passionate about all elements related to Windows and combined with his innate curiosity, Ivan has delved deep into understanding this operating system, with a specialization in drivers and... read more
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  • If Microsoft Outlook 2016 repeatedly crashes when opening, it’s time to take immediate action.
  • You can disable Host IPS on your antivirus or get rid of any old addons for Outlook right away.
  • Another option would be to verify your password. Speaking of that, don’t hesitate to check out the best password generator software tools as well.
  • To get access to similar solutions, feel free to bookmark our Outlook Troubleshooting Hub.
Outlook 2016 crashes when opening

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As you probably know Office 2016 has been released for a while, and many Windows 10 users have switched to it.

Although Office 2016 seems great, users have reported that Outlook 2016 crashes when launched, so today we’re going to see if there’s a way to fix this problem.

When launching Outlook 2016 you might receive an AppVIsvSubsystems32.dll error followed by the crash of your email client, and this can be quite frustrating if you need to check your email.

Others describe that their Outlook 2016 crashes when opening – Event ID 1000. In one case or another, there are a few solutions that might help you.

What can I do if Outlook 2016 crashes on launch?

1. Temporarily switch to a different email client

If you can’t fix the problem with Outlook, but you need to check your email, you might want to temporarily try out a different email client.

Alternative email clients can help you keep all your emails in one place, regardless of your email provider or the number of accounts.

Good email clients implement additional features that help you keep your inbox organized. They can help you sort your contacts into customizable categories.

On top of that, many productivity email clients come with great search features that save you a lot of time and hassle.

They integrate automatic tagging and filtering that will help you find a specific email by using descriptive keywords of the content within it.

Additionally, worthy email clients come with great encryption to ensure that all your data is private and no third party has access to the content of your emails.

2. Disable Host IPS on McAfee Antivirus

  1. Right-click the McAfee Antivirus icon in your system tray.
  2. Go to Quick Settings.
  3. Now, just set Host IPS to off.

If you’re using McAfee Antivirus you should know that some of its features can cause crashes, but there’s no need to worry because you can easily fix this.

This solution has been confirmed as effective, but the only downside is that you have to repeat this process every time you start your PC.

Users reported that other antivirus applications, such as ESET antivirus, also have this feature. However, after disabling the HIPS feature in ESET, the problem should be resolved.

If this is a problem for you, you might want to consider switching to a different antivirus software until Microsoft or McAfee fixes this issue. There are many great antivirus solutions on the market.

The best antivirus software comes with full protection against malware, ransomware attacks, and more. On top of that, they include online protection features such as an integrated VPN.

3. Uninstall old addons for Outlook

  1. Go to Settings > System > Apps & features.
  2. Wait until the list of installed apps shows.
  3. Now search for any Outlook 2013 addons and delete them.
  4. After deleting them, restart your computer and try starting Outlook again.

If you have used Outlook 2013 chances are that you might have some addons for it installed on your computer. If you can’t start Outlook at all, you might want to try starting it in Safe Mode.

To do that, simply press and hold the Ctrl key and run Outlook 2016 to start it in Safe Mode. Users reported that Kaspersky Anti-Spam add-on caused this issue, but other add-ons can also cause it.

4. Reinstall Office 2016

  1. Open Control Panel.
  2. When Control Panel opens, go to Programs and Features.
    Outlook 2016 crashes on startup even in safe mode
  3. Select Microsoft Office from the list and choose Repair.
  4. Choose Online Repair option and follow the instructions.

If none of the solutions above help, you might want to try uninstalling and installing Office 2013 again.

If that doesn’t help, you’ll just have to wait for an official solution from Microsoft or to temporarily roll back from Office 2016 to Office 2013. Check out our dedicated article about rolling back to Office 2013 for more details.

Several users reported that they fixed the issue by repairing their Office installation. This is relatively simple, and you can do it by following the above steps.

After repairing your Office installation, check if the issue still persists.

5. Disable hardware acceleration

  1. Start Outlook.
  2. When Outlook starts, go to File > Options > Advanced.
  3. Locate Display section and check Disable Hardware graphics acceleration.

Many modern applications tend to use a hardware acceleration feature in order to provide a better performance, but sometimes this feature can cause problems to appear.

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To fix the issue, you need to disable it by doing as described above. Once you disable this feature, the problem should be completely resolved and Outlook will start working again.

6. Delete all email accounts and add them again

  1. Press Windows Key + S and enter control panel. Select Control Panel from the list of results.
    Outlook 2016 Crashes sent items
  2. When Control Panel opens, go to User Accounts > Mail.
  3. When Mail window opens, click on Email accounts.
  4. Now select the desired account and click Remove. Repeat this step for all available accounts.

According to users, this problem might be caused by a corrupted email account. To fix the issue, you need to remove all your email accounts and add them again.

After removing the accounts, you need to add them again. Once the accounts are recreated, the problem should be completely resolved and Outlook will start working again.

7. Check your password

If Outlook keeps crashing on your Windows 10 PC, the problem might be your password. Users reported this problem after changing their account passwords on a different PC.

Even if you change your account password on a different device, other devices will still use the old password.

To fix that, you need to change your account settings and configure the account to use the new password. After doing that, Outlook should start working again without any problems.

8. Start Outlook as administrator

  1. Locate the Outlook shortcut on your Desktop.
  2. Right-click the shortcut and choose Run as administrator from the menu.
    Outlook 2016 has stopped working

According to users, Outlook can sometimes crash if you don’t have administrative privileges. Fortunately for you, you can always try running Outlook as an administrator.

If this method works, you’ll have to use it every time you want to start Outlook. This can be a bit tedious, but there’s a way to always run Outlook with administrative privileges. To do that, just follow these steps:

  1. Right-click Outlook shortcut and choose Properties from the menu.
    Outlook 2016 not responding, opening
  2. Navigate to the Compatibility tab. Now check Run this program as an administrator option. Lastly, click on Apply and OK to save changes.
    Outlook 2016 crash event id 1000

After doing that, Outlook will always start with administrative privileges, and you won’t have any issues with crashing.

9. Delete iCloud and Internet calendar

  1. Go to Control Panel > User Accounts > Mail.
  2. Click on Show Profiles.
  3. Select your profile and choose Properties > Data files.
  4. If you see iCloud or Internet calendars on the list, be sure to remove them.

If Outlook is crashing on your PC, you can fix the problem simply by deleting iCloud and Internet calendar. If you’re using these features, you might want to skip this solution and try something else.

On the other hand, if you don’t use iCloud or Internet calendar, you can remove them as described above. Then, try to start Outlook and check if the issue still persists.

10. Use manual configuration

  1. Select Manual setup or additional server types > Exchange ActiveSync.
  2. Now enter your user information.
  3. For the Mail server, you need to enter If you’re using Outlook address, enter

You can fix this problem simply by using manual instead of automatic configuration. Automatic configuration is faster and simpler, but sometimes it can cause your Outlook to crash.

To use manual configuration, you just need to follow the above steps while setting up a new account.

After doing that, your Outlook should start working again without any problems. Many users reported that this solution worked for them, so be sure to try it out.

11. Perform a BIOS update

According to users, you might be able to fix the problem with Outlook crashes by performing a BIOS update.

Few users reported that Outlook 2016 crashes on their laptops, but after updating their BIOS, the issue was resolved.

Updating BIOS is a somewhat advanced procedure, so we advise you to be extra cautious while doing it. Be sure to check your motherboard manual for detailed instructions.

Keep in mind that you can cause permanent damage to your PC if you don’t update the BIOS properly, so be extra cautious.

We already wrote a short guide on how to flash your BIOS, so you might want to check it out for more information.

Few users reported that the BIOS update fixed the problem for them, so you might want to try that. If you don’t know how to update BIOS properly, it might be better to contact a professional.

Outlook is a great email client, but sometimes issues with it can occur. Therefore, in the above article, we’ve shown you how to fix the following problems:

  • Outlook 2016 opens and closes immediately in Windows 10/Outlook 2016 closes immediately after opening – Several users reported that Outlook 2016 opens and closes immediately on their PC. You should be able to fix that by repairing your Outlook installation or delete iCloud and Internet calendar.
  • Outlook application error 1000/Outlook 2016 crash event ID 1000 – This is another relatively common problem with Outlook. Since this is a common error, you should be able to fix it using one of our solutions.
  • Outlook 2016 crashes on startup even in safe mode – According to users, they are unable to start Outlook 2016 in safe mode. If you have this problem too, be sure to reinstall Outlook and check if that solves the issue.
  • Outlook 2016 has stopped working – Many users reported that Outlook 2016 crashes on their PC followed by the Stopped working message. This can be an annoying problem, but you should be able to fix it using one of our solutions.
  • Outlook 2016 Crashes sent items, sending email, loading profile – Outlook 2016 can crash in various circumstances, and if you’re having this problem, be sure to recreate your Outlook profile and see if that helps.
  • Outlook 2016 crashes rundll32, olmapi32.dll, kernelbase.dll, wwlib.dll, ntdll.dll – Sometimes various .dll files can cause Outlook 2016 to crash. In most cases, these are built-in addons, but you can fix the problem simply by disabling them.

Were these solutions helpful? Let us know in the comments area below.

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