How to Enable Windows Security in Windows 11
If Windows Security isn't running or you see a message like "Your IT administrator has limited ac...
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Browse labFix Windows Security Service Failed to Start Error 0x80070422
You see the error "Windows Security service failed to start" with code 0x80070422. This usually m...
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...
How to Fix Chrome DNS Error Code 105 (ERR_NAME_NOT_RESOLVED)
If you see "DNS error code 105" or "ERR_NAME_NOT_RESOLVED" in Chrome, it means the browser cannot...
Windows Security Troubleshooting Checklist
If Windows security features aren't working as expected—like Windows Defender won't start, update...
Fix Windows Search Token Expired & Outlook Not Syncing
You may see a message that your Windows Search token has expired, and Outlook stops syncing. This...