• Try accessing your Teams account in a browser or phone to rule out any account-specific issues.
  • Remove outdated Teams login details from Credential Manager and sign in again.
  • If the problem persists, reset or reinstall the Teams app.

Fix 1: Clear Teams Cache

Microsoft Teams collects cache in the background to improve loading times and the overall app experience. However, a corrupt cache can lead to issues such as high CPU usage , screen sharing not working, and continuous prompts to sign in.

In such cases, clearing the Microsoft Teams cache can help.

Step 1: Press the Windows key + R to open the Run dialog box. Type %appdata%\Microsoft\Teams in the field next to Open and hit Enter .

Step 2: Select all folders and right-click on them. Then, click the trash icon .

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Open the Teams app again, sign in with your account details, and start using it.

Fix 2: Remove Microsoft Teams Credentials

Another reason you might experience sign-in issues is that the Teams account details stored in the Credential Manager are outdated. Here’s how to fix that.

Step 1: Press the Windows key + S to open the search menu. Type Credential Manager in the box and hit Enter .

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Step 2: In the Credential Manager window, click Windows Credentials .

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Step 3: Remove all the msteams entries and restart your PC. After that, check if you can log into the Teams app.

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Fix 3: Repair or Reset Microsoft Teams on Windows

Your Windows PC comes with a handy app repair tool. You can use it to fix any issues with the Teams app causing sign-in problems.

Step 1: Press the Windows key + I to open the Settings app and go to Apps > Installed apps .

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Step 2: Scroll to Microsoft Teams > click the three horizontal dots next to it > select Advanced options .

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Step 3: Click Repair under the Reset section. If the issue remains, click the Reset button instead.

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Fix 4: Reinstall Microsoft Teams

Lastly, if nothing else works, consider uninstalling Microsoft Teams from your computer and reinstalling it. Here’s how.

Step 1: Press the Windows key + I to open the Settings app and go to Apps > Installed apps .

Step 2: Click the three horizontal dots next to Microsoft Teams and select Uninstall .

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Once removed, download the Microsoft Teams app and install it on your PC. You should not have any sign-in issues after that.

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