bootsect /nt60 C: /force /mbr
fixes the master boot record of the hard drive.

bootsect /nt60 C: /force
fixes the boot record of the Windows partition.

bcdboot C:\windows /s C: /f BIOS
puts boot files on C:.

If the previous command is misunderstood, try again by shortening it like this:
bcdboot C:\windows /s C:
(Don’t do it unless bcdboot C:\windows /s C: /f BIOS is misunderstood.)

Then make the C drive active with this sequence of commands:
diskpart
lis dis
sel dis n  (n is the disk number of the disk with Windows)
lis par
sel par n  (n is the partition number of the partition with Windows)
active
exit

Then restart.

sursa aici: https://diskcryptor.net/forum/index.php?topic=5254.0