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

Fix 'Windows Defender Not Recognized' Error in Command Prompt

Chrome Memory Stays High After Closing Tabs: Fixes That Work

You close a dozen tabs in Chrome, but the memory usage stays high—sometimes even after restarting...

Fix Certbot Renew Certificate Not Working

You run certbot renew and nothing happens, or you get an error. Renewal failures oft...

Command Prompt Auto Start Configuration Checklist

You need Command Prompt to launch automatically every time Windows starts, perhaps for a monitori...

How to Fix PowerShell Network Path Not Found

When you run a PowerShell command that references a network location and see 'network path not fo...

Fix Jupyter Kernel Not Starting on Windows 10

When you launch a Jupyter notebook and the kernel never starts—or shows a 'Kernel error' or 'Conn...