Knowledge base for software setup, errors, and daily tool work.

Fix CMD Service Unavailable Without Admin Rights

If you see 'service unavailable' when running commands in Command Prompt, and you don't have admi...

Fix npm ERR! code EACCES Permission Denied Error

If you see npm ERR! code EACCES or Error: EACCES: permission denied whe...

Fix Windows Defender Invalid Configuration via Group Policy

When Windows Defender reports an "invalid configuration" error, it's often due to conflicting or ...

Fix 'Windows Defender File Locked by Another Program' Error

You try to delete, move, or rename a file, and Windows shows an error: “The action can’t be compl...

Fixing WinRAR Checksum Errors: Causes and Solutions

When you extract a WinRAR archive and see a checksum error, the file is likely corrupted or the d...

Fix SSH Permission Denied (publickey) on Raspberry Pi