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

Reduce Windows Search Memory Usage: Practical Settings

If Windows Search is using 200-500 MB or more of RAM on your system, especially on a machine with...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Windows Update Authentication Failed for Domain Users

If you're a domain user and see "Authentication failed" when checking for Windows Updates, the is...

Windows Store Error 0x80073cf9: How to Fix Installation Failures

You try to install or update an app from the Microsoft Store, but you get error 0x80073cf9. The a...

Fix OneDrive DNS Error on Windows 10: Step-by-Step

If you see a DNS error when trying to sync OneDrive on Windows 10, it usually means your PC can't...

Fix Microsoft Store Error 0x80070005: Access Denied

When you open Microsoft Store and see Error 0x80070005 with the message "Access ...