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

Fix Windows Security Authentication Error 0x80070035

Fix Windows Permission Denied Sync Errors: Step-by-Step Guide

You try to sync a folder or file, and Windows throws a "permission denied" error. The sync tool s...

Fix Microsoft Store Module Not Found Error Code

You open the Microsoft Store and see an error like “module not found” or a specific error code su...

How to Fix Jupyter Notebook Token Authentication Error

When you start Jupyter Notebook, you might see a prompt asking for a token or password, or the br...

Fix Windows Defender 502 Bad Gateway Sync Error

If you see a "502 Bad Gateway" error when Windows Defender tries to sync, it usually means a temp...

Windows Defender Proxy Error: Setup Checklist for Fix

You're running Windows Defender and it throws a proxy error—often during an update or a full scan...