
Fix Windows Activation After Hardware Change
If you recently upgraded your PC's motherboard, CPU, or hard drive and now see “Windows is not ac...
Software troubleshooting desk

If you recently upgraded your PC's motherboard, CPU, or hard drive and now see “Windows is not ac...

You enter your password, the system processes, then kicks you back to the login screen—sometimes ...

If you see a 504 Gateway Timeout error, it usually means a server upstream (like a proxy or gatew...

You see "Windows isn't activated" or "We can't activate Windows on this device" even though you h...

When you try to update or run Windows Defender, you might see error 0x80070643 with a message lik...

If you're seeing a 504 Gateway Timeout error when running Windows Update, it usually means the up...