
Fix Windows Defender Sync Issues with Microsoft 365
When Windows Defender fails to sync with Microsoft 365, you might see alerts like "Can't connect ...
Software troubleshooting desk

When Windows Defender fails to sync with Microsoft 365, you might see alerts like "Can't connect ...

You try to run a Microsoft Store command (like ms-windows-store: or a PowerShell cmd...

If Windows Search suddenly stops working and you see a 'connection refused' error when trying to ...

You've changed BitLocker settings—maybe turned on encryption for a new drive or modified a Group ...

You try to sync a file or folder in OneDrive, but see a 'permission denied' error. This usually m...

If you see "DNS error code 105" or "ERR_NAME_NOT_RESOLVED" in Chrome, it means the browser cannot...