HDD suddenly RAW. A device which does not exist was specified

Hi,
As of yesterday, I have been unable to access files on my HDD consistently; Upen restart the disk is either not available at all, or it is available, but unusable (Interacting with the drives, or the files on the drive giving the error message "D:/<FILE PATH> is not accessible, a device which does not exist was specified"). The other drive (C: ), an SSD, is properly working.

Currently, checking the Disk Management shows that the HDD in question (Disk 0, the D drive) is currently formatted as RAW (Despite previously being properly NTFS formatted in the past), it has, however, previously been shown as 'Not initialized' though. The drive does show up in the BIOS.

 

I am first and foremost looking for a recover files from the drive, saving the drive itself comes second, for now. If anyone's got any idea on how to solve this, or on what's going on in the first place, I'm happy to listen.
I've already tried replacing the SATA cable, and I've tried 3 out of the 6 SATA ports available on the motherboard, so my assumption is that the problem doesn't lie in there

Thank you to anyone trying to help me in advance!

Here's my PC information:
CPU: AMD Ryzen 7 3800X 8-Core Processor, 3893 Mhz, 8 Core(s), 16 Logical Processor(s)
MB: Gigabyte X570 AORUS PRO
GPU: ASUS GTX 1080 Ti
RAM: Ballistix Sport LT 32GB Kit DDR4 16GBx2 2400 DIMM
PSU: Seasonic FOCUS Plus 850 Gold

Drives

• ADATA SX8200PNP (250GB SSD, Boot Drive)
• ST4000DM004-2CV104 (4TB HDD, Regular Storage Drive and the one that's having problems)

Misc

• OS: Microsoft Windows 10 Education, Version 1903, 10.0.18362 Build 18362
• BIOS Version/Date: American Megatrends Inc. F3, 13/06/2019
• SMBIOS Version: 3.2

The system is about 8 months old now.

Edited by hamluis, 13 March 2020 - 04:44 AM.
Moved from Internal Hardware to Imaging/Backup - Hamluis.

Download testdisk for windows. Run a Quick Search on the RAW drive. It may be called sda or sdb. Highlight any partitions found. Press the upper case "P" key. Do you see your files? If no partitions are found do a deeper search which will take time on a 4TB drive. Don't write anything just post back if you see your files.

https://www.cgsecurity.org/wiki/TestDisk_Step_By_Step

Note: Select EFI/GPT disk 

I have started the scan, however, it appears to be getting read errors on all lba's 

If you get a lot of read errors, stop. You will need to consult a professional recovery service and that is not cheap. Drivesavers is one such service. I have no affiliation with them.

If you cannot use a professional data recover service see this guide. Read it twice. Even doing the below method may not recover all or any data.

https://html5.litten.com/make-full-image-of-broken-raw-infected-or-encrypted-hard-drive-with-free-tools/

Edited by JohnC_21, 13 March 2020 - 08:21 AM.

Thank you for your help anyhow. I suppose I'll just have to give up on saving the data I have on there. On another note, if I wanted to wipe the drive so I can use it again, how would I go about it, if possible at all

For the amount of errors on the drive I would be hesitant to use it unless the data was backed up on another device. You can wipe it by using the following method.

I would do a full format on the drive, not quick. Right click the drive, and select format. make sure the Quick Format box is not checked. 

If the drive is a Seagate you can use Seatools for Windows and do the Fix All Long test which will attempt to recover bad sectors. On a 4TB drive this will take about 12 hours. 

https://www.seagate.com/support/kb/how-to-use-seatools-for-windows-202435en/

FYI, Personally I avoid Seagate. If you get a new drive look at WD, Toshiba, or HGST.

Edited by JohnC_21, 13 March 2020 - 08:27 AM.