Fix Windows Security Not Launching at Startup
You restart your PC and notice Windows Security (formerly Windows Defender) isn't running. The ic...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Activation Token Expired After Hardware Change: Fix
After replacing a motherboard, CPU, or hard drive, you may see a message that your Windows activa...
Fix Windows Activation Connection Timeout After Reinstall
After reinstalling Windows, you may see an activation error: “We can't activate Windows on this d...
How to Fix Windows Activation High CPU Usage
If your PC is running slow and Task Manager shows high CPU usage from a process related to Window...
Fix Windows Security Antivirus Not Turning On
You open Windows Security and see that the antivirus is off, with no obvious way to turn it on. T...
Fix Windows Activation Server Timeout Error 0x80072efd
When you see error 0x80072efd while trying to activate Windows, it usually means your computer co...
Topic paths
Quick titles
VS Code PowerShell Git Permission Denied FixTroubleshoot Windows Security Module Not FoundWindows Security Backup Sync Not Working? Fixes to TryTroubleshoot Microsoft Store Loading Screen IssueHow to Configure Docker Desktop WSL IntegrationFix Microsoft Teams Microphone Not Detected in SettingsHow to Fix Audio Out of Sync in FFmpegResolve Windows Security Backup Access Denied