Checklists for software errors, setup, and tool workflows.

Configure Proxy Settings for Windows Update

If Windows Update fails to check for updates or downloads get stuck, a misconfigured proxy is a c...

Fix Microsoft Store Not Opening Due to Corrupted Cache

If the Microsoft Store refuses to open—showing a blank window, a spinning circle, or nothing at a...

Fix Windows Defender Failed to Start: Registry Repair Steps

When you see “Windows Defender failed to start” or “Windows Defender service terminated unexpecte...

Fix CMD Service Unavailable Due to Group Policy

Situation

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

Fix Windows Search 504 Gateway Timeout After Update

After a Windows update, some users see a 504 gateway timeout when using Windows Search. This usua...

Fix Windows Defender Error 0x8007042c: Network & Setup Checks

You see error 0x8007042c when opening Windows Defender or during a scan. The message usually says...