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

Fix Windows Update 404 Not Found Using Command Prompt

If you see a 404 error when checking for Windows updates, it usually means the update files canno...

Chrome Profile Configuration for Multiple Users Guide

When multiple people share a computer, or you need to keep work and personal browsing separate, C...

How to Fix 'File Locked by System' in Windows Defender

If you see an error like "File locked by system" when running a Windows Defender scan or trying t...

How to Fix Windows Search Path Not Found Error

If you see a message like 'The specified path does not exist' or 'Search path not found' when usi...

Fixing SSH Connection Refused for Linux Server via PuTTY

When you try to connect to a Linux server with PuTTY and get "connection refused," it usually mea...

Fix 'ffmpeg command not found' in PHP exec()