How to convert mbr to gpt and vice versa?

Question

Hard disks

There is a PC with a gpt disk and Windows 8.1 x86. If I change the disk to mbr to install XP as a second OS, will 8.1 boot from mbr? If so, how to convert gpt to mbr without data loss?
And there is a PC with windows 7 x64, you need to put 10 x64 on it as a second OS. If I convert mbr to gpt, will seven work?

Answer 1

1. Win7 is the first Windows that already knew how to understand GPT. Actually, this style then arose.
2. GPT and MBR are disk layout styles, and they refer to the entire disk. You cannot make one GPT partition on a shared disk and another MBR partition.
3. Advanced partition managers can convert MBR to GPT and back without data loss. I use Paragon's HDM or Aomei Partition Assistant for this. To use them, you do not need to install them on your computer, let alone buy them. It is enough to start from any of the popular repair and recovery LiveDVD or LiveUSB - as a rule, this software is there.
4. Win10 is generally installed on a GPT partition, but with the help of some dances with a tambourine, you can force it to be placed on the MBR, and it feels fine there. Personally, I have tried two methods for this. In any of them, it is necessary that the computer be able to get rid of UEFI and switch to legacy boot mode (i.e. return to MBR). Now more and more computers are being produced that do not know how to do this, they generally do not have the option to switch to legacy.

Answer 2

and what for such tambourines put ikspi in a virtual machine and don't worry