i/o subsystem driver failure

Swapping drives from old pc to another... Windows 10 Desktop C: Drive (from original PC) not being recognized. Get non system drive error. Can reboot with USB windows but can't access Drive Drive appears as a "Windows" drive when checked on other PC Any suggestions? Tried swapping cables...

This is my first build so I'm at a bit of a loss here. I decided to copy someone else's build in hopes of not messing anything up, here's a link : https://www.tonymacx86.com/threads/eriks-tiny-but-mighty-htpc-asrock-z370m-itx-ac-i5-8400-uhd-630-graphics-high-sierra.239157/ My Build: CPU: Intel...