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

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

How to Fix Command Prompt Not Working on Mac

If you're trying to use the command prompt on a Mac, you're likely referring to the Terminal app....

Fix Windows 11 Activation Rate Limit Error

You're trying to activate Windows 11 and see an error like "Activation rate limit reached" or "To...

Fix Windows Store Error 0x80073cf9 During Installation

Windows Store error 0x80073cf9 typically appears when you try to install or update a...

Fix Microsoft Store Blank Screen When wsreset Fails