Microsoft Teams FAQs - Desktop App Login Issues

Frequently Asked Questions (FAQs)

Table of Contents

 

Questions & Answers

Clearing Microsoft Teams Cache

Steps:

Fix Option 1
In Windows, please see steps below.

  1. If Teams is still running, right-click the Teams icon in the taskbar, and then select Quit.

    Uploaded Image (Thumbnail)
  2. Open the Run dialog box by pressing the Windows logo key +R.

    Uploaded Image (Thumbnail)
  3. In the Run dialog box, enter %appdata%\Microsoft\Teams, and then select OK.

    Uploaded Image (Thumbnail)
  4. Delete all files and folders in the %appdata%\Microsoft\Teams directory.

    Uploaded Image (Thumbnail)
  5. Restart Teams.
     


Clearing Microsoft Teams Credentials 

Steps:

Users experiencing issues logging in the Microsoft Teams desktop app on their machine may need to clear any Microsoft Teams credentials on the machine.

  1. Open the control panel app.

    Uploaded Image (Thumbnail)
  2. In the control panel, locate and select the ‘Credential Manager’ setting.

    Uploaded Image (Thumbnail)
  3. Click on the ‘Windows Credentials’ icon.

    Uploaded Image (Thumbnail)
  4. Click on the drop-down arrow for all ‘teams’ items under the “Generic Credentials” section.

    Uploaded Image (Thumbnail)
  5. Click ‘Remove’ on each Microsoft Teams credential.

    Uploaded Image (Thumbnail)

 


Reset Microsoft Teams App via Windows Settings

Steps:

If cache clearing didn’t solve the issue, resetting the app through system settings is another effective method.

  1. On your device, go to your devices Settings.Uploaded Image (Thumbnail)
  2. Click "Apps", on the left hand side of your screen.Uploaded Image (Thumbnail)
  3. Then click "Installed Apps", which should be loacted at the top of your screen.Uploaded Image (Thumbnail)
  4. Search for Microsoft Teams in the list. Uploaded Image (Thumbnail)
  5. Click the three-dot menu on the right side of the screen.Uploaded Image (Thumbnail)
  6. On the drop-down that appears, click "Advanced Options". Uploaded Image (Thumbnail)
  7. Scroll down to where you see "Reset" and click the button below that labeled "Reset". Uploaded Image (Thumbnail)

Sign Out and Re-Sign In to Microsoft Teams 

Steps:

Sometimes the “something went wrong” error is caused by an expired login session or a broken token. 

  1. Open Microsoft Teams. 

    Uploaded Image (Thumbnail)
  1. Click your profile icon on the top-right of your screen.

    Uploaded Image (Thumbnail)
  1. On th top-right side of the drop down menu, Select "Sign out". 

    Uploaded Image (Thumbnail)
  1. Close the Teams app completely by clicking the "X" on the top right hand side of your screen. 

    Uploaded Image (Thumbnail)
  1. Reopen it and log in again with your O-Key account. 

If the problem was due to an authentication glitch, this should fix the error instantly. 
 


Reinstall Microsoft Teams (Clean Install)

Steps:

If the error still persists, a complete reinstall of Teams ensures any corrupted or outdated files are removed. 

  1. On your device, go to your devices Settings. 

    Uploaded Image (Thumbnail)
  1. Click "Apps", on the left hand side of your screen.Uploaded Image (Thumbnail)
  2. Then click "Installed Apps", which should be loacted at the top of your screen.Uploaded Image (Thumbnail)
  3. Search for Microsoft Teams in the list. Uploaded Image (Thumbnail)
  4. Click the three-dot menu on the right side of the screen.Uploaded Image (Thumbnail)
  5. Click "Uninstall".Uploaded Image (Thumbnail)
  6. Open the Run dialog box by pressing the Windows logo key +R.

    Uploaded Image (Thumbnail)

  7. In the Run dialog box, enter %appdata%\Microsoft\Teams, and then select OK.

    Uploaded Image (Thumbnail)

  8. Delete all files and folders in the %appdata%\Microsoft\Teams directory.

    Uploaded Image (Thumbnail) 
  9. Visit the official Teams download page and install the latest version. 

  10. Launch and sign in. 
     


Run Microsoft Teams as Administrator 

Steps:

Some Windows 11/10 systems restrict app permissions, which can trigger unexpected errors. 

  1.     Right-click the Microsoft Teams shortcut on your desktop or Start Menu. 

  1.     Choose Run as Administrator. 

  1.     Try signing in again. 

If Teams isn't allowed to access certain folders or network settings, this might solve the issue. 


Disable VPN or Proxy (If Applicable)

Steps:

If you’re using a VPN, proxy, or enterprise network, Teams may be blocked from authenticating correctly, leading to an error. 

  1. Temporarily disconnect from any active VPN or proxy. 

  1. On your device, go to your devices Settings. 

    Uploaded Image (Thumbnail)
  2. Click "Network & Internet" on the left hand side of your screen.

    Uploaded Image (Thumbnail)
  3. Then click "Proxy", which should be located on the center of your screen.

    Uploaded Image (Thumbnail)
  4. Turn off Use a proxy server, if it’s enabled. 

    Uploaded Image (Thumbnail)
  5. Restart Teams. 

Teams needs a direct, unblocked internet connection to sync and authenticate successfully. 


Update Microsoft Teams and Windows

Steps:

Compatibility issues between outdated software versions can also result in an error message. 
 
          How to update Teams: 

  1. Open Teams.

    Uploaded Image (Thumbnail) 
  1. Click on the three dots to the left of your profile icon on the top right hand side of your screen. 

    Uploaded Image (Thumbnail)
  2. On the drop-down menu click "Settings".

    Uploaded Image (Thumbnail)
  3. Type "About" in the settings seach bar on hte left hand sidde of your screen, then click "About Teams > Version".

    Uploaded Image (Thumbnail)
  4. Under "Version", you should be able to either update the application, or se what version you are using. 

    Uploaded Image (Thumbnail)


How to update Windows: 

  1. On your device, go to Settings.

    Uploaded Image (Thumbnail)
  2. Then on the left hand side of your screen, select "Windows Update". 

    Uploaded Image (Thumbnail)
  1. Click Check for updates and install any pending patches. 

    Uploaded Image (Thumbnail)
  1. Reboot your computer. 

Staying updated ensures Teams runs smoothly on your system. 


Try the Web Version of Microsoft Teams

Steps:

If you urgently need access and none of the above fixes worked, use the web version of Teams. 

  1. Go to https://teams.microsoft.com 

  1. Sign in with your O-Key account. 

While this doesn’t fix the desktop error directly, it’s a good temporary solution when dealing with the error. 

 

Print Article

Related Articles (1)

This article guides Microsoft Teams users through the process of restoring files deleted from a Team’s Files tab or its connected SharePoint site. It explains how to navigate from Teams to the associated SharePoint site, access the Recycle Bin, and restore the deleted file to its original location. By following the step-by-step instructions, users can quickly recover accidentally deleted files and minimize disruptions to collaboration.

Related Services / Offerings (2)

Request restoration of a deleted Microsoft Teams group within 30 days of deletion.
Microsoft Teams is the centerpiece for collaboration in Office 365. It offers services for chat, audio and video meetings, and collaborative file sharing. Teams creation is managed through OKEY.