Purpose: Resolve an issue where Microsoft Teams (desktop and web) cannot send pasted images, causing hangs, lag, or failed message sends.
Scope: Domain‑joined Windows devices experiencing Teams paste/send failures.
Symptoms: Pasted images hang indefinitely; sent confirmation never appears; recipient never receives the image; Teams may stop sending all messages; affects Teams Desktop and Teams Web; does not occur on new or freshly reset computers.
Root Cause: Corruption in the Teams LocalCache directory used by the new Teams client.
Resolution Overview: Delete the MSTeams cache folder, optionally run Disk Cleanup, restart the computer, then verify Teams functionality.
Step 1: Quit Microsoft Teams Completely Right‑click the Teams icon in the taskbar → Quit. Confirm all Teams processes are closed in Task Manager.
Step 2: Delete the MSTeams Cache Folder Go to (replace
<YourUsername>):C:\Users\<YourUsername>\AppData\Local\Packages\MSTeams_8wekyb3d8bbwe\LocalCache\Microsoft
Delete the MSTeams folder.
Step 3: (Optional) Run Disk Cleanup Use Disk Cleanup to remove leftover temporary cache files.
Step 4: Restart the Computer Restart to force Teams to rebuild a clean cache.
Step 5: Verify the Fix Test sending a pasted image in Teams Desktop and Teams Web at:
https://teams.cloud.microsoft/
Expected: pasted images send immediately; Teams resumes normal operation in Desktop and Web.
Expected Outcome: Teams image paste/send issue resolved; no profile deletion or OS reset required; cache rebuilt cleanly.
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