Hard Drive not showing up on "My PC"

Vivac93922

Reputable
Jun 29, 2015
67
0
4,630
I have two hard drivers and a ssd, but one of my hard drives isn't showing up after I've switched between different OS's. I have a 1TB Hard Drive a 250 GB SSD, and a 320 GB HDD, but the 320 isn't showing up. Also, it's a prebuilt PC that I bought from someone. When I bought it was running Windows 8.1 and the hard drive was visible in "My PC." I updated to Windows 10 and it was still there. I downgraded to Windows 8.1 again and it was still there. I downgraded to Windows 7, but then it disappeared. Ever since that downgrade, even though I upgraded back to Windows 10, it doesn't show up in "My PC."
One more thing to note: Whenever I do a fresh install when I'm selecting my HDD/SSD I want to install my OS on there's an option for my 320 GB HDD. So, there's no wiring issues.
 

Vivac93922

Reputable
Jun 29, 2015
67
0
4,630


No, it doesn't show up. There's two unnamed I guess "partitions." One 99 MB and one 450 MB.
 
if windows is installed on you drive you see a small system partion and a restore partion and the rest of the drive will be for data. the partion will be active. with your system you should see three drives with the right size partions if the drive and bios is set right. in the bios check to make sure the sata ports set to achi mode. if there set to raid or ide you may have to reinstall windows. for the sata cables google the mb info see if the mb has 3 party chipset if it does make sure that non of your cables are connected to it.
 

Vivac93922

Reputable
Jun 29, 2015
67
0
4,630


No, I meant 99 Megabytes and 450 Megabytes