
Fix Windows Activation Sync Issues Between Devices
You might see an activation error on a second PC even though your Microsoft account shows a valid...
Software troubleshooting desk

You might see an activation error on a second PC even though your Microsoft account shows a valid...

You’re trying to access a network share, remote desktop, or an app that uses Windows authenticati...

You open Outlook, try to send or receive email, and get an authentication failed error. The progr...

If you boot into Safe Mode and open Windows Security only to see a blank white or gray screen, yo...

If you use BitLocker with a TPM and PIN or startup key, you may encounter a situation where the t...

If you’ve booted into Windows Recovery Environment (WinRE) to run Command Prompt for repairs, but...