Windows 10: Yikes, I accidentally deleted my other hard drive during windows installation

I have been forced to downgrade to Windows 10 due to incompatibility issues with 11 and had to do a clean install. When deleting the partitions before the install I had forgotten I have a 2nd HDD in there with my files on and deleted that by mistake too. I've seen that there are various methods of recovering this and have tried to create a boot usb with Testdisk and AOMEI but neither seems to work. I'm terrified of doing something wrong and losing the data. What's the best thing to do? Install windows on the main drive and then try to recover the data from windows, or find a boot option that w

:)

 

Hard drive/ OS issue

a guy suggested :

• shutdown
• unhooked HDD
• restarted
• yay !!
• reconnected HDD
• restarted
• yay !!

also , try method 3
How to Unlock Drive in Windows 10: 5 Ways to Remove a Lock

 

Accidentally deleted GPT partition on hard drive

I have an SSD and a HD, I have windows installed on the SSD and I use the HD to store extra data. I accidentally deleted the GPT partition of my hard drive (doesn't affect my windows however windows can't detect the hard drive now) while trying to install Ubuntu on my HD for a dual boot. Is there any way that I can reinstate the GPT partition for the hard drive without having to pay for 3rd party software? Any help would greatly be appreciated as I am currently unable to access any data from my hard drive.

 

2 of my internal hard drives, not been reconized!!

With both hard drives plug in ,I get to the page to where to install windows7pro , none of the disk are usable , ""windows cannot be installed to this hard disk space. The partition contains one or more dynamic volumes that are not supported for installation" Maybe if I tryed to install windowsXP and than do the rest that you suggested, (just a thought)