Hmm. That's interesting. The only thing I can think of that could potentially cause that is if for whatever reason there was an exisitng EFI partition on your linux drive. Windows will use whatever EFI it sees even if it's on a separate drive from it's primary NTFS partition. As you can imagine this can cause some fucky stuff to happen.

[–] Sarcasmo220@lemmy.ml 10 points 10 months ago

Some instructions I've read for dual booting recommend installing Linux first, removing the SSD wit Linux on it from the computer, and then install Windows to prevent that from happening.

It's really shitty that users have to go through all that trouble, though.