How to Enable Windows Defender After It Failed to Start
If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Update High CPU Usage When It Stops Working
If Windows Update is stuck and your CPU usage spikes to 100%, you're likely dealing with a hung u...
Fixing SQLite Database Locked Errors in Multi-Threaded Apps
If you're seeing "database is locked" errors in a multi-threaded application, you're not alone. S...
Windows Search for Mac Configuration Checklist
If you're moving from Windows to Mac and miss the instant file search you had with Windows Search...
Enable Windows Defender After Disabling Third-Party Antivirus
If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...
Fix Windows Terminal Version Mismatch During Setup
When installing or updating Windows Terminal, you might see an error like "Setup failed because a...
Topic paths
Quick titles
Fix Windows Security Settings Loading SlowlyFix 0x80070422: Windows Defender Real-Time Protection Not StartingMicrosoft Store 502 Bad Gateway: Troubleshooting ChecklistWindows Search Empty Results? Here's the FixTroubleshoot PowerShell Automatic StartupAccess Denied in Chrome? Try This ChecklistHow to Fix Task Scheduler Invalid Configuration in Windows 10Fix PowerShell Startup Failure by Reinstalling