Fix Windows Defender Service Not Starting (Error 0x80070422)
You try to start Windows Defender but get error 0x80070422: “The service cannot be started, eithe...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix 'Windows Activation Module Not Found' via Command Prompt
When you try to activate Windows and see an error that the activation module is not found, it usu...
How to Enable Windows Defender When It Keeps Crashing
If Windows Defender keeps crashing or won't stay enabled, you're not alone. This usually happens ...
Outlook Cannot Connect to Office 365: Fixes to Try
You open Outlook and see 'Cannot connect to Office 365' or 'Disconnected'. This usually means Out...
How to Fix 'File Locked' Error in Windows Terminal and CMD
You try to delete, rename, or move a file in Windows Terminal or Command Prompt, and get an error...
Fix PowerShell Command Not Found After Windows Update
After a Windows update, you might see errors like command not found when trying to r...
Topic paths
Quick titles
How to Fix DISM Restore Health Error 0x80073712Windows Search Not Indexing? Check PermissionsHow to Fix Windows Update Error 0x80070643 Permission DeniedWindows Security Configuration Guide for New UsersPowerShell Azure AD Troubleshooting GuideTroubleshoot Outlook Data File Opening FailureWindows Activation Offline Installer Not SyncingClear Stale Credentials for Windows Search Token Expired Error