Hard drive disk missing/transformed

[bluejayway]

Hi there, last night my pc showed a blue screen i was on a steam game at that time. The blue screen with the sad face said that there was an error and the computer will reboot.

When reboot was done i got a message that i should choose a page file disk location and i saw that the disk i was using for that (disk D) was not on the list to choose. That disk is the one wherei keep all my important files also. So i went to the disk management and found out that the disk not showing is now called disk 0 and it's partitioned in two parts (100gb and 400gb) and it's reserved for system. The thing is that i didn't partitioned that disk and it was working fine and it was called disk D.

How can i revert this so i can access my disk data, for backup at least?

I'm using windows 10 pro.

Thanks in advance for any help!

 

[USAFRet]

1. Please show us a screencap of your current Disk Management window.

2. Sounds like a dead drive.

3. Backups are what you do before the BadThing happens.

 

[bluejayway]

My mistake, the disk showing is 450mb and 100mb. So the 500gb disk is not showing at all? I know i should've backup before but the disk was working just fine.

 

[USAFRet]

Disk 0 is your current C drive.
Some other drive (what used to be D?) is not showing at all. Either a completely dead drive, or disconnected SATA cable.

 

[bluejayway]

In case of dead disk, still there are tools to recover data from the it right?

 

[USAFRet]

In case of dead disk, still there are tools to recover data from the it right?

If the OS can't see it, no.