Checklists for software errors, setup, and tool workflows.

Fix Windows Security Path Not Found Error

When you try to open Windows Security (formerly Windows Defender Security Center) and see a messa...

How to Fix Windows Defender Not Opening

When you click Windows Defender and nothing happens, or it opens and immediately closes, it's oft...

Fix Windows Search Indexing Stuck on a Locked File

If Windows Search indexing gets stuck on a locked file, you may notice that search results are in...

Fix Windows Update Error 0x80070002 (Dependency Conflict)

When Windows Update fails with error 0x80070002, it usually means the update installer can't find...

Fix PowerShell 504 Gateway Timeout When Calling REST API

When you call a REST API from PowerShell and get a 504 Gateway Timeout, it means the server upstr...

Fix Ubuntu apt update GPG error: repository not signed

When running sudo apt update, you might see an error like:

W: GPG erro...