
Checklist for Fixing Command Prompt Startup Issues
If Command Prompt won't open, closes immediately, or shows an error on startup, the cause is ofte...
Software troubleshooting desk

If Command Prompt won't open, closes immediately, or shows an error on startup, the cause is ofte...

When you try to install an app from the Microsoft Store and get a 'permission denied' error, it u...

If you're running Windows on a Mac via Boot Camp, Parallels Desktop, or VMware Fusion, you might ...

You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...

You may see error messages like "Windows Defender can't start due to a dependency conflict" or no...

When you run a command in Command Prompt and see 'module not found', it usually means the system ...