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

Task Scheduler File Locked: Causes and Fixes

When a scheduled task fails with a "file locked" error, the task cannot access its executable or ...

Command Prompt Settings Not Saving: How to Fix

You change the font, layout, or colors in Command Prompt, click OK, but the next time you open it...

Fix Antivirus Causing High CPU Usage in Command Prompt

If you notice high CPU usage in Task Manager under Command Prompt, your antivirus software may be...

Fix Microsoft Teams Black Screen on Login: Step-by-Step

When you launch Microsoft Teams and see only a black screen after signing in, the app is likely s...

Fix 'Windows Security Authentication Failed' for Domain Credentials

How to Fix Microsoft Teams Connection Refused Error

When Microsoft Teams shows a 'connection refused' error, you can't sign in or use the app. This u...