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

Fix 504 Gateway Timeout After Windows Update

After installing a recent Windows update, you might see a 504 Gateway Timeout error when browsing...

Fix Windows Defender Module Not Found in Windows 10

You open Windows Security and see 'Windows Defender module not found' or a similar error. This us...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

Fix Windows 10 Product Key Not Working After Hardware Change

You replaced a major component—often the motherboard—and now Windows 10 says your product key isn...

Fix Windows Update Error 0x80070643: Practical Steps

You run Windows Update and get error 0x80070643. The update fails, often with a generic message. ...

How to Reset Windows Defender Settings to Default

You might need to reset Windows Defender (now Microsoft Defender Antivirus) to its default settin...