When Teams starts misbehaving — not opening, chats not loading, sign‑in issues, random errors — the most common request from IT or support is simple:

“Clear the Teams cache.”

This is what they mean.

✅ New Microsoft Teams – Windows (recommended way)

This is the easiest and safest option for most users.

1. Close Microsoft Teams completely
2. Open Settings in Windows
3. Go to Apps > Installed apps
4. Search for Microsoft Teams
5. Click Advanced options
6. Select Reset
7. Open Teams again and sign in

✅ Chats and files are not deleted
✅ Only local data is cleared
✅ This is fully supported by Microsoft

✅ New Microsoft Teams – Windows (manual method)

If IT or helpdesk asks you to do it manually:

1. Close Microsoft Teams completely
2. Press Windows + R
3. Paste this path and press Enter:

%userprofile%\AppData\Local\Packages\MSTeams_8wekyb3d8bbwe\LocalCache\Microsoft\MSTeams

4. Delete everything inside the folder
5. Open Teams again

👉 First launch may take a bit longer — that’s normal.

✅ New Microsoft Teams – macOS

1. Close Microsoft Teams
2. Open Terminal
3. Run these commands:

rm -rf ~/Library/Group\ Containers/UBF8T346G9.com.microsoft.teams
rm -rf ~/Library/Containers/com.microsoft.teams2

4. Open Teams again and sign in

✅ Microsoft Teams classic – Windows

If you are still using Teams classic:

1. Close Microsoft Teams completely
2. Press Windows + R
3. Paste this path and press Enter:

%appdata%\Microsoft\Teams

4. Delete all files and folders in that directory
5. Open Teams again

✅ Microsoft Teams classic – macOS

1. Close Microsoft Teams
2. Open Terminal
3. Run this command:

rm -r ~/Library/Application\ Support/Microsoft/Teams

4. Open Teams again and sign in

What to expect after clearing the cache

• You will need to sign in again
• Teams may start a little slower the first time
• Most random or unexplained issues are usually gone