Boot USB - Help

[Brian-D]

Is there a tool I can download that I can make a boot usb that will see the raid? I need to run repaires on the windows 2012R2. The server is a DL320E

Back Story

We had an issue with a windows update on our server that stop a program from running. They decided to uninstall the windows update from our server and it failed to uninstall. Shortly after it failed they rebooted the server and it would not boot back up. It just cycles and then goes to advance recover options. When I look at diskpart the only drive I can see are the USB drive if it is plug in. I created a 2012R2 install usb, No extra drivers, but it cant see the raid volume. I think it need to have the raid drivers so that it can see the volume to I can try to run SFC on it.

Any extra help would be awesome.