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

UFW Firewall Rules Not Applying to Docker Containers: Fixes

You've set up UFW rules to restrict traffic, but Docker containers still connect freely. This is ...

Fix pnpm Store Permission Denied When Using nvm Node Version

You're running pnpm and hit a Permission denied error on the store directory, especi...

Fix PowerShell Blank Screen on Windows 11

If you open PowerShell on Windows 11 and see nothing but a blank window—no prompt, no text—the sh...

How to Set Up Task Scheduler for Automated Backups

If you need to automate backups without third-party software, Windows Task Scheduler is a reliabl...

Java JDK Not Recognized After Installation: Fixes and Checks

How to Clear Windows Defender Cache

If Windows Defender (Microsoft Defender Antivirus) is acting up—stuck on an old update, using hig...