How to recover hard disk partition table after accidental formatting?

Question

System administration

Good afternoon,
During the reinstallation of Windows, a jamb occurred, accidentally reformatted the gpt table into mbr.
Is it possible to somehow restore the old gpt table? And then at the moment there is a table with new partitions, the old Windows does not load accordingly ((If I start installing a new Windows, the old files may be damaged, which is unacceptable
There were 3 partitions on the railway, how to restore?

Answer 1

Oh, there were a lot of them!

• Paragon Hard Disk Manager.
  
• Aomei Partition Assistant.
  
• Mini Tool Partition Wizard.
  
• Acronis Disk Manager.
  
• Ease US Partition Master.
  

Each of them can do something similar, but most likely this function is only available for Pro. Are you a Pro?
You take a disk from a friend of the same or higher capacity, you do a block-by-block, full, low-level copy of the disk. Turn off your disk. And you pervert over the copy as soon as you can (what's on the friend's disk), looking for which of these programs can do something. Everything will have to be done from under the boot system.
If you have never done this, be prepared that you will be tinkering for a week. Maybe it's better to reinstall Windu?

Answer 2

If the data is valuable, it is better to give it to specialists.
If the data is not very valuable and it is permissible to lose it, you can experiment yourself.
There are different utilities for this, for example - https://www.cgsecurity.org/wiki/TestDisk
But you need to be able to use them.
I repeat - if valuable data, then to specialists.
If a person is not an expert, he usually makes a bunch of stupid mistakes that destroy data.
For example, they begin to recover data directly on the problem disk, and not on a copy, etc.

Answer 3

gparted

Answer 4

Something like this happened to me. I tried exactly what ettaluni advises, it did not help. Then I found R-Studio, but alas, it was too late. If you have not done anything with the disk yet, try it. True, you will need another HDD about the same size as the original one