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

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...

Fix PowerShell Auto Start Not Working Due to Execution Policy

You set a PowerShell script to run automatically at startup, but it fails silently. The script wo...

How to Fix Git Clone Permission Denied (Publickey)

When you run git clone and see Permission denied (publickey), Git canno...

Fix Outlook Add-In Conflict That Prevents Startup

You launch Outlook and it crashes or hangs before the main window appears. A common cause is a co...

How to Fix Windows Defender Not Turning On

Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...

Fixing Microsoft Teams Rate Limit Error When Sending Messages