I have an encrypted system disk pulled from a dead PC.

* I do not have the rescue disk / ISO from when I encrypted the disk.
* I do have the (working) password
* The disk is fully functioning (i.e. not corrupt or broken)
* I can plug the disk in to a USB enclosure and mount the individual partitions on another working PC and **I can decrypt and read the data just fine**.

However I would like to **permanently decrypt** all the partitions on the disk and it seems Veracrypt doesn't let you do that on a "foreign" system disk.

I don't care about the bootloader; I don't need the decrypted disk to be bootable, or if I do, I can add a regular MBR to it using something like Macrium Reflect.

So... does anyone know if it's possible to permanently decrypt a "foreign" system disk on another computer without using the original rescue disk?

I know I could simply mount the partitions individually on a working machine, copy the decrypted data to a third disk manually, then completely erase/format the encrypted disk and copy the unencrypted data back to it... but I'd rather avoid that since I don't have a third disk with enough free space to store all the unencrypted data.