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

How to Fix Windows Defender That Keeps Stopping and Starting

If you notice Windows Defender (Microsoft Defender Antivirus) repeatedly stopping and restarting,...

How to Install Windows Security on Ubuntu (via Virtual Machine or Wine)

If you're looking to run Windows Security (Microsoft Defender) on Ubuntu, you've hit a fundamenta...

How to Fix Invalid Configuration in Command Prompt

You open Command Prompt and see an error like "Invalid configuration" or "Configuration system fa...

Fix Windows Security DNS Errors After a Windows Update

After a recent Windows update, you may see a DNS error inside Windows Security (formerly Windows ...

Fix pip SSL Certificate Verify Failed on Ubuntu