Here’s how to fix error 500 on Microsoft Teams

Milan Stanojevic
by Milan Stanojevic
Windows & Software Expert
Milan has been enthusiastic about PCs ever since his childhood days, and this led him to take interest in all PC-related technologies. Before joining WindowsReport, he worked as a front-end web developer. Read more
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Have you encountered error 500 on the Microsoft Teams application? If so, it could mean one of several things.

Here are some of the common causes of error 500 on Microsoft Teams:

  • Corrupted system files
  • Improper removal of previous installation files
  • Failure to install Office
  • Your Office installation was blocked by either the antivirus program or your computer’s firewall
  • The Office can’t install because your internet connection may be preventing it from doing so
  • Proxy settings are preventing Office installation
  • A previous version of Office existing in your computer is blocking the installation of the newer version (this could be due to an incomplete, partial, change, installation, and/or failed repair or removal of the previous version)

Here are some solutions that show you how to fix error 500 on Microsoft Teams.

How to solve error 500 on Microsoft Teams

  1. Clear credential cache to fix error 500 on Microsoft Teams
  2. Repair the Office application
  3. Remove Office to fix error 500 on Microsoft Teams
  4. Remove Office manually to fix error 500 on Microsoft Teams
  5. Download and install Office again to fix error 500 on Microsoft Teams

1. Clear credential cache to fix error 500 on Microsoft Teams

Here’s how to do this:

  1. Right-click Start.
  2. Select Control Panel.
  3. Click User Accounts.
  4. Open Credential Manager.credential manager windows 10
  5. Clear the credential cache.
  6. Restart Microsoft Team client.
  7. Go to the System Tray.
  8. Right-click on Teams icon.
  9. Log out then restart.

Once you log out, then restart, Microsoft Teams app will request for your credentials.

Enter your Office 365 credentials.


2. Repair the Office application

This helps to fix and/or replace any corrupted system files in your computer that may have caused error 500 on Microsoft Teams.

Take these steps:

  1. Right-click Start.
  2. Select Control Panel.
  3. Click Programs.
  4. Click Programs and Features.
  5. Click on the Office version you want to repair.Repair Microsoft Office
  6. Click Change.
  7. Choose Quick Repair.office 365 repair feature
  8. Click Repair.

Note: In case Quick Repair doesn’t fix it, select Online Repair, then click Repair.

Did this solution help? If not, try the next solution.


3. Remove Office

If error 500 persists after trying to repair Office, try uninstalling Office from your computer using these steps:

  1. Right-click Start.
  2. Select Control Panel.
  3. Click Programs.
  4. Click Programs and Features.
  5. Choose Office Suite.Uninstall-microsoft-office
  6. Click Uninstall.

Sometimes there can be files and data that remain, even after the removal of Office from Control panel. Just to be sure, you can check out the link below and follow the quick steps in the guide.


4. Remove Office manually

If removing Office using solution 2 didn’t work, try manually uninstalling Office to remove it completely using the steps below:

  1. Remove Windows Installer package.
  2. Remove scheduled tasks on Office.
  3. End Click-to-Run tasks on Task Manager.
  4. Delete shortcuts from Start menu.
  5. Delete registry sub keys related to Office.
  6. Delete Office files.

Step 1: Remove Windows Installer package

Do the following:

  1. Go to Office installation folder by going to C:Program Files Microsoft Office.
  2. Right-click the relevant Office installation folder, for example, Office 15 or Office 16.
  3. Click Delete.

Step 2: Remove scheduled tasks on Office

  1. Right-click Start
  2. Type CMD in the search field box
  3. From the search results, go to Command Prompt and right-click on it.
  4. Select Run as administrator.
  5. Type the following commands, then press Enter after each:
    exe /delete /tn “MicrosoftOfficeOffice Automatic Updates”
    exe /delete /tn “MicrosoftOfficeOffice Subscription Maintenance”
    exe /delete /tn “MicrosoftOfficeOffice ClickToRun Service Monitor”

Step 3: End Click-to-Run tasks on Task Manager

  1. Right-click Start
  2. Select Task Manager
  3. Click the Process tab
  4. Check if these processes are running then right-click on each and click End Task
    • .exe
    • Setup*.exe

Step 4: Delete shortcuts from Start menu

  1. Right-click Start.
  2. Type CMD in the search field box.
  3. Right-click Command Prompt in the search results.
  4. Select Run as administrator.
  5. Type
    %ALLUSERSPROFILE%MicrosoftWindowsStartMenuPrograms
  6. Press Enter.
  7. Delete Microsoft Office 16 folder (or the folder for Office on your computer).

Step 5: Delete registry sub keys related to Office

  1. Right-click Start.
  2. Select Run.
  3. Type regedit.
  4. Click Ok or press Enter
  5. The Registry Editor will open. Delete these sub keys:
    HKEY_LOCAL_MACHINESOFTWAREMicrosoftOfficeClickToRun
    HKEY_LOCAL-MACHINESOFTWAREMicrosoftAppVISV
    HKEY_CURRENT_USERSOFTWAREMicrosoftOffice
  6. Once you’re done, delete the Office key

Step 6: Delete the Office files

  1. Right-click Start
  2. Select Run
  3. Type %ProgramFiles%
  4. Click Ok or press Enter
  5. Delete the Microsoft Office 16 folder (or the folder Office in your computer)microsoft office local disk
  6. Open Run dialog box again
  7. Type %ProgramFiles(x86)%
  8. Click Ok or Press Enter
  9. Delete the Microsoft Office folder.

If you could not remove Microsoft Office after following the steps listed above, you may want to check out some of the additional solutions that we listed in this guide.


5. Download and install office again

Here’s how to do this:

  1. Sign in to your Microsoft account
  2. Select Install
  3. Click Run
  4. If you see You’re good to go’, click All done

Did any of these solutions work for you? Let us know in the comments section.


Frequently Asked Questions

  • Error code 500 indicates Microsoft Teams could not connect to the servers. This issue can point to a general Teams outage or connectivity problems on users’ computers.

  • Microsoft Teams uses the TCP ports 80 and 443 and the UDP ports 3478 through 3481. Make sure these ports are open on your computer for Teams to work correctly.

  • There is a series of IP addresses that need to be configured properly for Microsoft Teams. To check the up-to-date list of IP addresses for Teams, go to Microsoft’s support page.