How to Unlock a File Locked by Windows Security
You try to open or delete a file, and Windows says it's locked by Windows Security. This usually ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Activation Error 0xc004f074: Registry and KMS Setup
Windows activation error 0xc004f074 usually appears on volume-licensed systems that use a Key Man...
Fix Windows Activation Module Missing Error
You see a message that the Windows activation module is missing or not found, often when trying t...
Fixing Windows Security Connection Timeout on Sign-In
You’re trying to sign in to Windows and the “Windows Security” window appears, but it eventually ...
Fix OneDrive Sync Error 0x8004de40 on Windows
OneDrive sync error 0x8004de40 usually appears when you try to sign in or sync files. The error m...
Windows Security Not Scanning for Viruses: How to Fix
If Windows Security (formerly Windows Defender) is not scanning for viruses, you may see an error...
Topic paths
Quick titles
Resolve BitLocker Drive Access Denied IssueFix Windows Terminal 404 Not Found After UpdateCertbot Nginx Plugin Permission Denied: Fixes and ChecksRestore Chrome Settings After Browser CrashFix Microsoft Teams Connection Error: Step-by-Step GuideWindows Activation Service Not Responding: Quick FixEdge Update Repair Step-by-Step GuideHow to Fix Task Scheduler Service Unavailable in Windows 10