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

Fix VirtualBox Kernel Driver Not Installed Error

When you try to start a virtual machine in VirtualBox and see "Kernel driver not installed (rc=-1...

Setup Chrome Profile Download Location on Windows

When you download files in Chrome, they go to a default folder. But if you use multiple Chrome pr...

Chrome Extension Failed to Start: Practical Fixes

You install or update a Chrome extension, click its icon, and nothing happens—or you see a vague ...

Fix Chrome Profile Port Already Allocated Error

Fix Windows Update Stuck Due to DNS Settings

If Windows Update is stuck checking for updates or fails with an error, your DNS settings might b...

Checklist for PowerShell Startup Script Not Working

You set up a PowerShell script to run at startup, but it doesn't execute. This article walks thro...