Checklists for software errors, setup, and tool workflows.

How to Reinstall the Windows Security App (Microsoft Defender)

If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...

Fix Windows Security Service Not Running for Antivirus

If Windows Security shows 'Service not running' or your antivirus isn't working, the underlying s...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix Command Prompt Auto Start Error 0x80070005

If you've set Command Prompt to run automatically at startup (via Startup folder, Task Scheduler,...

Fix PowerShell Assembly Cache Not Updating

You’ve updated a .NET assembly in the Global Assembly Cache (GAC) or copied a new DLL into a modu...

OneDrive Setup Checklist for New Users

If you're new to OneDrive, the initial setup can feel straightforward, but a few missteps can lea...