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 Defender Can't Connect After Update
After a Windows update, you might see an error that Windows Defender can't connect to the service...
How to Interpret Windows Security Log Event ID 4672
If you check your Windows Security log and see Event ID 4672 repeatedly, you are not alone. This ...
How to Fix Windows Search High CPU Usage
If your PC fan is spinning up and Task Manager shows Windows Search (SearchIndexer.exe) using 30-...
VS Code Debugger Not Working After Update: How to Fix
After a VS Code update, the debugger may stop working—breakpoints ignored, launch configurations ...
Command Prompt Not Working After Windows Update: Fixes
After a Windows update, Command Prompt may fail to open, show a blank window, or close immediatel...
Topic paths
Quick titles
Windows Update Version Mismatch Error FixFix File Locked by Another Process in CMDHow to Resolve Chrome Sync Permission DeniedFix Redis Connection Refused with Password Authentication ErrorsHow to Get PowerShell Migration Tool Working on Windows 10Windows Security Won't Open After Update – Troubleshootingpnpm Store Permission Denied: How to Reset PermissionsFix BitLocker 'Cannot Access Drive Permission Denied' Error