Windows Defender Offline Scan Setup Guide
If your Windows PC is infected with malware that won't go away with a normal scan, a Windows Defe...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender Token Expired in Safe Mode
If you see a 'token expired' message when trying to run Windows Defender in Safe Mode, it usually...
Fix 'Access Denied' Error When Activating Windows 10
You're trying to activate Windows 10, but you see an error like 'Access Denied' or 'Permission De...
Fix OneDrive Sync Offline Installer Error 0x8004de40
When installing OneDrive using the offline installer, you may see error code 0x8004de40. This typ...
Fix Windows Security DNS Errors After a Windows Update
After a recent Windows update, you may see a DNS error inside Windows Security (formerly Windows ...
Chrome Extension Blocked by Administrator: How to Fix
You see the message "This extension is blocked by your administrator" in Chrome, and you can't en...
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