My Hard Drives Keep Disappearing

[ErvinBoyes]

Just today, I've been having a problem where my 1tb WD hard drive and a 160gb WD hard drive keep disappearing. I could be wrong here, but its seems as though it happens when I launch Battlefield 1, and if I restart my PC they are both there again. I've been inside my PC several times to make sure all cables are secure to no avail. I've actually tried Crystaldisk recently because I was getting a bluescreen which was hard drive related, and it said that all of my hard drives were in good condition. I've also done CHKDSK /f /r on all my hard drives. One of my hard drives is out because I was testing to see which on was causing the blue screen and I haven't had it since (the blue screen was 0x00007A KERNEL_DATA_INPAGE_ERROR). Please help.

Here are my specs:

-MSI GTX 970
-750w Corsair Psu
-MSI Z87-G45
-i7 4790K w/ stock cooler
-8gb of RAM
-2TB HDD
-1TB HDD
-a 160gb HDD
- a 120gb SSD
- I am running a 64 bit Windows 7

 

[Megahertz07]

It can be your Power Supply. What PS you have?
Do you have another to test?

Run System File check = sfc /scannow

 

[ErvinBoyes]

My PSU is a Corsair CX750M. I will try the other thing.