Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Service Unavailable Error

You open Windows Security and see the message 'Windows Defender service unavailable' or 'Windows ...

Fix Windows Search Returning 404 Not Found Error

When you search for a file or app in Windows and click a result, you may see a ‘404 Not Found’ er...

Fix Chrome Tunnel Connection Failed: Network Config Guide

When Chrome shows 'tunnel connection failed' or 'ERR_TUNNEL_CONNECTION_FAILED', it usually means ...

How to Fix Chrome Profile Token Expired Sign In Again Error

You open Chrome and see a message: 'Your profile token has expired. Sign in again.' This usually ...

How to Reset Your Jupyter Notebook Token

When you try to open Jupyter Notebook and see a prompt asking for a token or password, you've lik...

Fix BitLocker High Memory Usage After Windows Update

Why BitLocker Memory Usage Spikes After an Update

After a Windows update, some users noti...