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

Fix Windows Update High CPU Usage and Error 0x80070002

When Windows Update runs, you may see high CPU usage and eventually error 0x80070002. This usuall...

How to Speed Up Windows Update Downloads

When Windows Update downloads crawl, it's usually not your internet connection. Here are practica...

How to Fix Windows Security Service Unavailable

When Windows Security shows "Service unavailable" or a red banner, your antivirus and firewall pr...

Fix Windows Activation Invalid Configuration Error

You see a message that your Windows activation is invalid due to a configuration problem. This us...

Fix Windows Error 0x80070005: Access Denied

You try to open a file, run an update, or install a program, and Windows stops you with error 0x8...

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