Very odd problem with Windows 2000 and Windows 10 dualboot

[AnX]

First of all. Windows 2000, by itself, runs great, starts on every boot, and so forth.

But, bring WIndows 10 that's installed on my SSD into the equation, and you get problems.

 

For some reason, whenever WIndows 10 runs and "settles itself", then after you reboot into 2k, you get an inaccesible_boot_device bsod.

With Windows XP and later, however, this isn't usually the case. So I want to know what's the issue? Could it be bwc's ahci driver for AMD? Or Windows 10 just not being multiboot friendly enough?

Edited September 14, 2015 by AnX