
Fix Windows Defender Version Mismatch Sync Errors
You see a message that Windows Defender definitions are out of sync, or that the client and serve...
Software troubleshooting desk

You see a message that Windows Defender definitions are out of sync, or that the client and serve...

You're trying to sign in to a website in Chrome, but you get an "authentication failed" error. Th...

You’re browsing in Chrome and a notification pops up: “Sign in again” or “Sync pause...

When moving Windows security configurations between systems or upgrading to a new version, the pr...

You've waited for a Windows update to finish, but it's stuck at 100% with a 'Pending install' mes...

Microsoft Teams caches data locally to improve performance, but a corrupted or overloaded cache c...