
Check If Your Windows License Is Retail or OEM
If you're troubleshooting activation issues or planning to transfer Windows to a new computer, kn...
Software troubleshooting desk

If you're troubleshooting activation issues or planning to transfer Windows to a new computer, kn...

If Windows Defender is misbehaving—showing false positives, missing updates, or refusing to run—r...

If you need to allow several users to access a Windows machine remotely, the default Remote Deskt...

When you see the error "Windows activation path not found", Windows can't locate...

You open Windows Security and get error 0x80070422, or see a message that the app can't start. Th...

When you see a 504 Gateway Timeout error in Windows Defender, it usually means t...