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

How to Reset Windows Defender Settings to Default

If Windows Defender isn't behaving as expected—real-time protection won't turn on, settings are g...

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 Reset Windows Defender Settings Without Losing Data

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

OneDrive Sync Error 404 Not Found: Causes and Fixes

You open OneDrive and see a '404 Not Found' error during sync. This usually means OneDrive can't ...

Command Prompt Keeps Closing Immediately: Fix Guide

If Command Prompt (cmd.exe) opens and closes before you can type anything, it's usually caused by...

Jupyter Notebook Token Not Working After Update: Fixes

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