10240, clean install for the Ent x64, iso converted from ESD. Everything is great, but when I install Hyper: one reboot. Setting Windows Changes (or something like that) and another reboot. Up to here all is normal, hyper-v does requires 2 reboots. But at this point all I get is a BSOD. Safe mode accessible, only way to get back is system restore. Tried 2 times already. Was using Hyper-V untill 10166. Anyone else had this problem?