I have an RAID1 array and 2 non-RAID disks connected (they have "LEGACY" in Type column in RAIDXpert). Also, I'm using Hyper-V running on Windows Server 2019 and I want to dedicate my non-RAID disks to my VMs running on Hyper-V. To do that I should make them offline in the Computer Management console. Once I do that, RAIDXpert shows error. Disk dedication in Hyper-V is failing. Making online also failing. The only solution is system reboot to make disk available again. But my problem in dedication disk to VM still unsolved. I assume the problem is in RAID controller driver. System is based on motherboard ASUS PRIME B-350 PLUS and CPU AMD Ryzen 7 2700X.