Can't see Windows drive in Ubuntu Live cd when using chntpw?

Question

linux

I'm trying to recover password on windows 10, usually I do it with chntpw on ubuntu live cd from flash drive, go to my windows partition, find SAM file in Windows/System32 and so on... But today, I can't see mine Windows partition in Ubuntu, I rebooted the computer when I was sitting on windows (that is, the fast boot mode was not turned on), I tried to mount it via mount /dev/sdaX where x entered from one to 4, but a folder appears in which I see only boot and recovery partitions, and I can’t find my WIndows / System32 in any way, in the disk utility I see my disk