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

Fix PowerShell High CPU Usage with Error 0x80070005

If you see PowerShell consuming high CPU alongside error 0x80070005 (Access Denied), the issue is...

Fix Remote Desktop Authentication Error: Practical Steps

You try to connect to a remote PC and get an authentication error. The connection fails, often wi...

Fix Windows Defender Slow Startup in Windows 10

If your Windows 10 PC takes longer to boot up and you suspect Windows Defender is the cause, you'...

MySQL Connection Refused on Port 3306: Causes and Fixes

If you're seeing "connection refused" when trying to connect to MySQL on port 3306, the MySQL ser...

Certbot Renewal Failed Due to Nginx Configuration: How to Fix

Fix 'PowerShell Not Recognized' Error on Windows

When you type powershell in Command Prompt or a script and see “powershell is not re...