Fix Windows Security Service Not Running for Antivirus
If Windows Security shows 'Service not running' or your antivirus isn't working, the underlying s...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender Port Already Allocated Error in Command Line
If you see "port already allocated" when trying to run Windows Defender from the command line, it...
Fix Windows Search Access Denied After Update
After a Windows update, you may see "Access Denied" when trying to search files, folders, or sett...
Fix systemd Service Restart Loop Due to Permission Denied
If your systemd service keeps restarting and you see "Permission denied" in the logs, the service...
How to Fix Windows Activation Token Expired Error
If you see a message that your Windows activation token has expired, it usually means the system'...
Fix Windows Search Not Running on Startup
If Windows Search doesn't start when you boot your PC, you'll notice the search box or taskbar se...
Topic paths
Quick titles
Firefox Profile Lost Sync Data? Fix and RestoreTroubleshoot Connection Refused Error for Windows Offline ActivationHow to Configure Shared Mailboxes After Migration in OutlookHow to Fix DNS Errors When Setting Up OutlookFix Windows Defender Malware Protection History Not ShowingWhy Task Scheduler Tasks Fail to Run and How to FixHow to Fix OneDrive 502 Bad Gateway ErrorMicrosoft Teams High RAM Usage Fix M1 Mac