Checklists for software errors, setup, and tool workflows.

Fix 'Windows Security App Not Installed' on Windows 10

You open the Start menu, search for Windows Security, and nothing shows up. Or you see a message ...

Resolving npm install Dependency Conflicts with React

When you run npm install in a React project and see warnings or errors about unmet p...

Windows Update Cleanup Stuck After Installing Updates

After installing updates, Windows may get stuck on the cleanup phase. The screen shows 'Cleaning ...

How to Enable Windows Defender Service Manually

If Windows Defender won't start or you see warnings that it's turned off, the underlying service ...

Fix Windows Search Access Denied for Administrator Account

Why You See 'Access Denied' as Administrator

You're logged in as an administrator, but Wi...

Fix Microsoft Teams 404 Not Found Error When Loading Apps

You click an app in Microsoft Teams and see a '404 Not Found' page instead of the app loading. Th...