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

Jupyter Notebook Token Not Working After Update: Fixes

After updating Jupyter Notebook or JupyterLab, you may find that the token-based authentication n...

How to Fix '404 Not Found' File Path Errors in CMD

Fix OneDrive Token Expired Error (0x8004de40)

You open OneDrive and see an error like “Your token has expired” or code 0x8004de40. This usually...

Fix Windows Update Password Login Loop

You try to install Windows updates, but the process keeps prompting for your password repeatedly,...

Outlook 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 bad gateway error in Outlook, it usually means the server gateway is misconfigur...

Fix OneDrive Sync Proxy Server Network Error

If you see a 'proxy server network error' while using OneDrive, it usually means your PC is tryin...