Data recovery for Seagate HDD 3,5" (deleted partition)

[HdMatr]

So my problem is the following:

I had a 1 TB Seagate disk with two partitions, one was for data ( ~ 629 GB ) and the other had a Windows 10 installation ( ~ 300 GB ). Then what I did was deleting the Windows 10 partition/volume and also the reserved Windows 10 volumes/partitions ( I had installed windows on another disk so I didn't need it anymore ).

After that, I had extended the data partition with disk management using the unallocated space of the old Windows 10 partition. Windows asked me to convert the disk into a dynamic one and I accepted.So I was seeing two volumes on disk management which were shown as one disk on File Explorer and they were working fine. Don't ask me why I deleted the ex-Windows 10 partition and what happened is that both partition got deleted and now I was seeing 1 TB ( 931 GB to be specific ) of unallocated space. I created a new disk without formatting and now I see an inaccessible RAW data disk.

What I want to do is recover/restore the original ~ 629 GB partition I don't care about the old Windows 10 partition. I'm trying to use DMDE but I'm not sure what to do, I can provide more screenshots if needed.

Attachments

Partition found with DMDE

[Amarbir[CDR-Labs]]

Sir ,
What Model HDD is This exact model please ,check in some utility

[Lardman]

What Model HDD is This exact model please ,check in some utility

It's in the screenshot ST10000DM10 so should be CMR.

Your files should be visible if you select the 676GB partition - you should be able to recover from there, I don't like in situ partition restoration.

[HdMatr]

What Model HDD is This exact model please ,check in some utility

It's in the screenshot ST10000DM10 so should be CMR.

Your files should be visible if you select the 676GB partition - you should be able to recover from there, I don't like in situ partition restoration.

Yes they are but I would like to restore somehow the partition, I don't have an external free drive.

[unknown]

Just select Disk 1 - right click - GPT off - right click 676 GB partition and select restore boot sector from copy - right click on the same partition and select insert the partition - power off and power on the drive.
Now you have full access to your deleted partition and unallocated 300GB.

[Amarbir[CDR-Labs]]

What Model HDD is This exact model please ,check in some utility

It's in the screenshot ST10000DM10 so should be CMR.

Your files should be visible if you select the 676GB partition - you should be able to recover from there, I don't like in situ partition restoration.

Sorry ,
I missed that ,this should be recoverable .