Main (C) drive isn't marked as active

[cpt_valkon]

My main (C) SSD drive isn't marked as active even though ti does boot perfectly well, but my other drive (D) HDD , is marked as active but it doesn't contain any OS. Should I mark my main drive as active?

 

[Colif]

No. the active partition is the boot partition, not C drive. It is what contains the files the bios looks for to boot win 10, even with 1 drive in PC, C isn't going to be the active partition. its always a small partition as the data it contains isn't very big.

Win 10 creates 4 partitions on install and one of those will be marked as system partition which should be the active partition (can you highlight your system reserved, does it say active as well?

if your system reserved isn't marked as active, I would guess you had both hdd in PC when you installed windows on C and it decided to use that for the boot partition, not C. It is only a problem if you later remove the hdd and find C doesn't boot anymore.

 

[Colif]

why do you have 48gb of unallocated space on disk 0?