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

How to Fix Windows Activation Update Error 0x800f0922

You might see error 0x800f0922 when Windows tries to install a feature update or during activatio...

How to Fix Microsoft Store Not Downloading Apps After Reinstall

After reinstalling Windows, you might find that the Microsoft Store won't download apps—they get ...

Fix Windows Security DNS Errors After a Windows Update

After a recent Windows update, you may see a DNS error inside Windows Security (formerly Windows ...

Fix Windows Defender Error 0x80073b01 (Crash on Startup)

If Windows Defender crashes on startup with error code 0x80073b01, the antivirus service may be f...

Command Prompt Setup Guide for Beginners

What is Command Prompt?

Command Prompt is a text-based interface in Windows that lets you...

WireGuard Handshake Not Completing: Firewall Fixes

You set up WireGuard, but the handshake never completes. Both peers show no handshake time, and y...