How to mark a GPT disk partition as not hidden?

Question

cmd/bat

In diskpart, when ejecting a disk, there is an asterisk ( prntscr.com/evdip9) that this is a gpt partition, the set id=07 command displays an error ( prntscr.com/evdiv6):

"Virtual Disk Service Error:
This operation is not supported by the object.
The specified command or options are not supported on this system."

Tried to boot in safe mode, same song. Tried running cmd as administrator.
Initially, the task was to copy the recovery partition, deploy it on a virtual machine and copy the Windows key to use it.

Answer 1

Comrade (123459 123459 ) answered correctly, but does not want to put the question into answers:

www.disk-partition.com/articles/unhide-recovery-pa...
"gpt unhide partition"

After, the hidden partition can be seen along with the rest of the disk partitions, but! before reboot, after reboot hides again.

Answer 2

With gpt markup, in addition to diskpart, Paragon's HDM works well, which is available in the well-known 2k10 utility package, which is included in almost all LiveDVD / LiveUSB tool-recovery tools I know. I have this MultiBoot . Launch from it, and may good luck accompany you!
But as for the original goal - to pull out the key - there are doubts. I tried to do it directly - it did not work, and I'm not sure what will happen through the virtual machine. Maybe clone the whole disk and work with this copy already? By the way, the key in the form of SLIC may not be contained in Recovery at all, but in the BIOS.