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

Cloudflare 521 Error: Origin Server Unreachable – Fixes

When you see a 521 error in your browser, Cloudflare is telling you it can't rea...

Fix DNS Probe Finished NXDOMAIN on Android Chrome

When you see DNS_PROBE_FINISHED_NXDOMAIN in Chrome on Android, it means the brow...

Fix Windows Search Access Denied for Administrator Account

Why You See 'Access Denied' as Administrator

You're logged in as an administrator, but Wi...

How to Enable Remote Desktop Connections in Windows Firewall

When you try to connect to a Windows PC using Remote Desktop (RDP) and get a connection error, th...

Fix Windows Login Loop with CMD Repair Tool

You log in, see the desktop for a second, and get kicked back to the lock screen. This Windows lo...

How to Enable DNS over HTTPS in Chrome

If you've noticed that your browser seems to be leaking DNS queries or you want to prevent your I...