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

Fix Windows Update Permission Denied Error in Windows 10 (Registry)

You try to run Windows Update in Windows 10 but get a 'permission denied' error. This often happe...

Fix Windows Security High Memory Usage

If you notice that Windows Security (formerly Windows Defender) is using a lot of memory—sometime...

How to Fix Command Prompt High CPU Usage on Windows 10

Clear DNS and System Cache via Command Prompt

If you're experiencing network issues, stale DNS entries, or application glitches, clearing vario...

How to Fix Missing Firefox Profile in Windows 10

You launch Firefox on Windows 10 and get an error that your profile is missing or cannot be found...

Fix Windows Update Error 0x80070002: Step-by-Step Repair Guide

Windows Update error 0x80070002 usually means the installer cannot find a required file. This oft...