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

How to Fix OBS Virtual Camera Not Showing Up

You've installed OBS Studio, set up your scenes, and want to use the virtual camera in Zoom, Disc...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Windows Activation Version Mismatch After Hardware Change

After swapping out a motherboard or other major hardware, you might see an error that Windows act...

Jupyter Kernel Not Starting: Quick Fixes

You open a notebook, try to run a cell, and the kernel dies or never connects. This is a common J...

Chrome Profile Missing After Update: How to Restore It

After a Chrome update, you might find your profile gone—bookmarks, passwords, extensions all vani...

PowerShell Offline Installer Silent Installation Command Guide

When you need to install PowerShell on multiple machines without internet access, the offline ins...