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

Fix 'Cannot Access File Because It Is Locked' in Command Prompt

When you try to delete, rename, or move a file in Command Prompt and see the error "The process c...

Fix Remote Desktop Version Mismatch Without Updating

You try to connect to a remote PC and get a version mismatch error. The client and host have diff...

Fix Nginx Config Test Fails with 'upstream host not found'

You run nginx -t and get upstream host not found. The config test fails...

How to Unlock a File Locked by Windows Terminal

You try to delete, rename, or edit a file and get an error that it's open in Windows Terminal. Th...

How to Fix Command Prompt Error 0x80070005 (Access Denied)

When you see error code 0x80070005 in Command Prompt, it usually means 'Access Denied.' This ofte...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed