Windows Defender Troubleshooting Checklist for Beginners
Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Windows Terminal 404 Error on Open
You click Windows Terminal and nothing happens, or you see a 404 error message. This usually mean...
Fix Proxy Settings for Windows Activation Error
If you see an activation error in Windows, a misconfigured proxy is a common culprit. The system ...
How to Fix PostgreSQL Password Authentication Failed for User
You see psql: error: FATAL: password authentication failed for user "youruser" when ...
How to Run PowerShell Scripts on Mac (Using PowerShell Core)
If you're trying to run a PowerShell script on a Mac, you'll quickly find that the classic Window...
How to Fix Microsoft Store File Locked Error
If you see a 'file locked' error when trying to install or update an app from the Microsoft Store...
Topic paths
Quick titles
Fix Windows Search Auto Start via RegistryHow to Fix 'File Locked by System' in Windows DefenderHow to Resolve Chrome 502 Bad Gateway from Profile ResetHow to Resolve Windows Activation 502 Bad Gateway ErrorResolve Windows Defender Loading Registry IssueHow to Stop Command Prompt Memory LeakWindows Defender Config Troubleshooting ChecklistUnable to Connect in Chrome – Profile Troubleshooting