Fix Windows Security File Locked Error 0x80070020
You try to move, delete, or rename a file, and Windows shows error 0x80070020: "The file is locke...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Defender Real-Time Protection Won't Turn On: Fixes
You open Windows Security, toggle real-time protection on, but it slides back to off. This is a c...
Fix Chrome Profile Error 0x80070057: Setup Guide
You try to launch Chrome and see an error code 0x80070057, often with a message about a corrupted...
Fix Windows Defender Error 0x8007042c: Network & Setup Checks
You see error 0x8007042c when opening Windows Defender or during a scan. The message usually says...
Outlook 504 Gateway Timeout: Troubleshooting Checklist
When Outlook returns a 504 Gateway Timeout error, it usually means a server or network component ...
How to Enable Windows Defender Service Manually
If Windows Defender won't start or you see warnings that it's turned off, the underlying service ...
Topic paths
Quick titles
Fix OneDrive Sync Pending Issues: Step-by-Step GuideHow to Resolve Error 0x80070005 in Windows SearchPowerShell Reset Settings Error GuideOneDrive Offline Installer Stuck at Downloading FixStop Windows Security from Maxing Out CPU During ScansFix Microsoft Teams High CPU on Windows and MacFix DNS Probe Finished NXDOMAIN on Android ChromeTroubleshooting Slow PowerShell Backup and Restore