Checklists for software errors, setup, and tool workflows.

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

OneDrive Setup Sync Folder Not Syncing: Practical Fixes

You set up OneDrive, pointed it to your sync folder, but nothing is syncing. Files stay local, th...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

You're browsing with Chrome and your VPN is on, but suddenly pages won't load and you see

How to Reset Windows Defender Settings Without Losing Data

If Windows Defender is misbehaving—showing false positives, failing to update, or blocking legiti...

Fix Chrome Authentication Failed Login Error

When Chrome displays 'Authentication failed' during login, it usually means the browser can't ver...

How to Fix Chrome Profile 502 Bad Gateway Error

If you see a "502 Bad Gateway" error in Chrome, especially after switching profiles or updating t...