Fix High CPU Usage by MsMpEng.exe (Windows Defender)
If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender Real-Time Protection Turned Off & Connection Refused
You open Windows Security and see real-time protection is off. Trying to turn it on fails with a ...
Fix OneDrive Sync Error 0x8007017c on Mac
You're syncing files in OneDrive on your Mac when a notification pops up: "We can't sync this fil...
Fix WSL Ubuntu Proxy Settings Not Working
If you've configured proxy settings in WSL Ubuntu but they aren't being used by apt or other tool...
Fix Windows Security App Stuck Loading
You open Windows Security to check your protection status, but the app just sits on a loading spi...
How to Disable Command Prompt High CPU Usage from Startup Services
If you notice that Command Prompt (cmd.exe) is consuming a lot of CPU right after boot, it's ofte...
Topic paths
Quick titles
Task Scheduler Auto Start Failure Windows 11 SolutionChrome Mic Permission Denied TroubleshootingHow to Use Multiple Monitors with Remote DesktopTroubleshooting MySQL Connection RefusedCommand Prompt Lag After Windows 11 UpdateHow to Fix Chrome Service Unavailable PermissionsHow to Restore Chrome Sync After a Profile ResetResolve Microsoft Store Installation Error Codes