Teams just started using near 100% CPU and memory

Hi KenStewart2750 ,

It seems that you have already taken some appropriate steps to troubleshoot the high resource usage issue with Microsoft Teams. Since killing the Teams processes and configuring startup without Teams result in normal resource usage, it suggests that the problem lies within the Teams application itself. Here are a few additional steps you can try to resolve the issue:

1. Clear Teams cache: Sometimes, corrupted cache files can cause performance issues. To clear the Teams cache, follow these steps:
a. Close Teams completely (ensure it's not running in the background).
b. Press Windows Key + R to open the Run dialog box, then enter "%appdata%\Microsoft\Teams".
c. Delete all the files and folders within the Teams folder, except for the "Downloads" and "Logs" folders.
d. Relaunch Teams and check if the performance has improved.

2. Update Microsoft Teams: Although you mentioned that you have the latest Teams version, it's worth verifying if any updates are available. To update Teams, follow these steps:
a. Open Teams and click on your profile picture in the top-right corner.
b. Select "Check for updates" from the menu.
c. If any updates are available, let Teams install them and then restart the application.

3. Disable unnecessary features and add-ons: Teams has several features and add-ons that might consume additional resources. Disabling certain features can potentially improve performance. To disable features:
a. Click on your profile picture in the top-right corner of Teams.
b. Select "Settings" from the dropdown menu.
c. In the Settings window, navigate to the "Permissions" section.
d. Review the permissions granted to different applications and disable any unnecessary integrations.

4. Run Teams in safe mode: Safe mode starts Teams with minimal features and add-ons. To launch Teams in safe mode, follow these steps:
a. Close Teams completely.
b. Press Windows Key + R to open the Run dialog box, then enter "teams.exe --safe".
c. Teams will start in safe mode, and you can check if the performance improves. If it does, it indicates that a third-party integration or add-on is causing the issue.

Remember to keep your operating system, drivers, and Microsoft 365 applications up to date, as updates often include bug fixes and performance improvements that could address the issue.