Knowledge base for software setup, errors, and daily tool work.

Fix Windows Activation 502 Bad Gateway Due to Proxy Settings

If you see a "502 Bad Gateway" error when trying to activate Windows, the problem is often a misc...

Fix BitLocker Recovery Key Access Denied Errors

You're locked out of a BitLocker-encrypted drive and see an "access denied" message when trying t...

Fix Windows Defender Update Error 0x80240034

If you see error 0x80240034 when updating Windows Defender, it usually means the update download ...

Fix Microsoft Store Error 0x80073cf3

When you try to install or update an app from the Microsoft Store, you might see error 0x80073cf3...

Fix SSH Permission Denied (publickey) on Raspberry Pi