Checklists for software errors, setup, and tool workflows.

Fix Windows Activation Blank Screen Stuck on Startup

You boot your PC and instead of the desktop, you see a blank screen with a Windows activation wat...

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...

Fix Windows Update Settings Greyed Out – Step-by-Step

You open Settings > Update & Security, and everything under Windows Update is greyed out. Buttons...

Fix Windows Backup Error 0x80070001 After Update

After a Windows update, you might see backup error 0x80070001. This often means "Incorrect functi...

How to Fix Windows Update Error 502 Bad Gateway

Windows Update may show a 502 Bad Gateway error when the update service cannot reach Microsoft's ...

How to Fix 'Windows Update Cannot Connect to Internet' Error

When Windows Update reports it cannot connect to the internet, it usually means something is bloc...