
Fix Windows Activation Service Unavailable After Update
After a Windows update, you may see an error saying the activation service is unavailable. This u...
Software troubleshooting desk

After a Windows update, you may see an error saying the activation service is unavailable. This u...

After reinstalling Windows or your security software, you might see a “token expired” error in Wi...

You see a message that your Windows activation token has expired, even though you're connected to...

You connect to a remote machine, authentication succeeds, but instead of a desktop you get a blan...

If you see a 404 Not Found error when trying to open your Chrome profile on Mac,...

If you've upgraded to Windows 10 or 11 from a previous version, or bought a new PC with Windows p...