Command Prompt Command Not Found Troubleshooting Checklist
When you type a command in Command Prompt and get 'not recognized as an internal or external comm...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Defender Security Center Blank White Screen
You open Windows Security (formerly Windows Defender Security Center) and see only a blank white ...
Chrome Not Loading Pages? Try These Fixes
You open Chrome, type a URL, and the page just spins or shows an error. Meanwhile, Firefox or Edg...
Fix Windows Search Settings Not Saving Changes
You change a Windows search setting—like indexing options or search mode—but it reverts after clo...
Fix BitLocker 502 Bad Gateway Network Error
If you see a 502 Bad Gateway error when BitLocker tries to contact a network unl...
How to Bypass Proxy in PowerShell Commands
When running PowerShell commands that make web requests, a configured proxy can sometimes block o...
Topic paths
Quick titles
Chrome localhost Connection Refused: FixesHow to Fix BitLocker Encryption Paused StatusFix Windows Terminal Not Loading SettingsWindows Update Stuck at 100%? Try These FixesOneDrive Reinstall: Sync Module Not Found TroubleshootingHow to Force Close Windows Update Stuck at 100%Remote Desktop Error Code 0x4 Mac FixTroubleshooting Windows Activation 502 Error