Have a PC with two SSD's. Installed windows 10 first, unplugged and installed second SSD, installed ubuntu using this method. Did the usual new install stuff, and installed my windows 10 SSD.

update-grub doesnt show my windows drive at all. in fact from the bios boot priority menu I cant select the drive it is listed on. But if I press F11 (the boot menu for my mb) I can pick it. ubuntu sees the drive as well and I can mount it.

os-probe shows nothing. and boot-repair lists off this gibberish about making a 1mb partition, which sounds like a royal pain in the butt.

can anyone else think of anything that might help me out? id really hate to reinstall windows, ive got some important software i would prefer not to lose.