Software comparisons, alternatives, and tool decision notes.

How to Fix Remote Desktop Connection Refused on Ubuntu

You try to connect to your Ubuntu machine via Remote Desktop (RDP) and get a "connection refused"...

Fix Windows Security Blank Screen in Command Prompt

You open Windows Security from Command Prompt and see nothing but a blank window. This can happen...

Fix Windows Update Setup Failed Rollback Changes

When a Windows update fails and you see "Undoing changes" or "We couldn't complete the updates, u...

Fix Cloudflare DNS Not Working with VPN Connection

If you use Cloudflare DNS (1.1.1.1) and a VPN together, you may hit a snag where DNS stops resolv...

Fix Remote Desktop 502 Bad Gateway on Windows 10

If you're seeing a '502 Bad Gateway' error when trying to connect to a remote desktop on Windows ...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...