Fix Windows Defender Dependency Conflict in Windows 10
You may see an error like "Windows Defender can't start because a dependency service is not runni...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Windows Update Invalid Configuration Error
You try to run Windows Update and get an error saying the configuration is invalid. This usually ...
Windows 10 Activation Troubleshooting Checklist
When Windows 10 shows an activation error, the cause is usually a recent hardware change, a corru...
Fix Windows Security Access Denied When Opening Settings
You click Windows Security in the Start menu or try to open Virus & threat protection, and instea...
Fix Windows Update Sync Issues Between PC and Server
You have a Windows PC that should get updates from your company's WSUS or domain server, but the ...
Fix Windows Activation Authentication Failed Error: License Not Genuine
When you see a message like “Windows activation authentication failed” or “license not genuine,” ...
Topic paths
Quick titles
PowerShell Not Opening on Windows 10: TroubleshootTroubleshoot Windows Security Real-Time Protection OffHow to Re-Enable Windows Defender Real-Time Protection via RegistryFix '404 Not Found' in Windows Terminal for CMDConfiguring Microsoft Store for Offline AccessTroubleshooting PowerShell Authentication Failed on Remote HostHow to Fix Windows Defender Not OpeningWindows Activation Token Expired with Internet: Fixes