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 PowerShell Permission Denied Error on Startup
Opening PowerShell and seeing a 'permission denied' error can stop you before you start. This usu...
How to Fix Microsoft Teams Permission Denied Errors
When Microsoft Teams shows a 'permission denied' error, it usually means the app can't access a f...
Fix Windows Defender Version Mismatch Permission Denied Error
You might see a 'version mismatch' or 'permission denied' error when trying to update or run Wind...
How to Find and Analyze PowerShell Error Logs
When a PowerShell script fails or behaves unexpectedly, the error message on screen often disappe...
How to Fix Windows Defender Error 0x80070422
When you see error 0x80070422 in Windows Defender, the Security Center service or Windows Update ...
Topic paths
Quick titles
Fix Windows Activation Update Error 0x80070643Configuring CMD Without Internet AccessBitLocker Service Unavailable: Troubleshooting ChecklistFix VS Code Extension Host Out of Memory ErrorHow to Fix Windows Update Path Not Found on Windows 11How to fix 'chrome: command not found' in LinuxWindows Security DNS Error: Antivirus Conflict FixFix Chrome Access Denied Error Code