andyroo77

Hello, weird question; I have a fully functional Catalina 10.15.3 install, very nice. I have created a complete bootable backup of this working Catalina and tested it. It works. I am running the latest bios firmware for this motherboard and have saved my working bios profile externally as backup. I wish to dual boot Windows, so I completely reset the Designare z390 to default settings and I have a Windows formatted 256GB m.2 NVME drive installed separate to my 2TB Catalina m.2 (still inside). I created and ran a Windows 10 bootable USB stick My bootable Windows installer works as I get to the Windows language and keyboard selection screen but when I click Install, I always get the following error message: "A media driver your computer needs is missing. This could be a DVD, USB or Hard Disk..." See: I have tried selecting drivers from the Gigabyte disk provided with the motherboard, tried the latest from the Gigabyte website, nothing works, I cannot get past this screen. I think it is either missing drivers for the USB ports (I have tried the installer in every port, no change) or it is not seeing my Sabrent brand 256GB m.2 drive, despite it being formatted for Windows use. Can anyone suggest what may be my issue here?

That did the trick, back to full functionality. Thank you very much Maldon

Here is a link to the run_me app .zip (also too big to attach: https://we.tl/t-z5h8j4WXO9

Hi, I have Catalina running on a Z390 Designare with 9900K. I was recently messing with the bios to overclock and undervolt the i9900K and now my Catalina will not shutdown when selected, it only restarts (possibly some kernel panic on shutdown. Also when the computer goes to sleep, upon wake, I get no HDMI output signal (or any signal) and have to hold power button and restart. Can someone please help me troubleshoot as to what may be the cause of this issue? My EFI is too large to post here apparently, so here's a link to download my EFI: https://we.tl/t-0xdwcCcLle Many thanks to anyone who attempts to help obviously.