There is an issue if you are using HIBERNATION or FAST BOOT this can happen.
Go back to what worked, check your cables and read on.
Similar search on HIBERNATION if you forget how.
Hi. I just bought and installed new ram into my windows 7 pc. And now it says
Invalid system disk
Replace the disk, then press any key
Could this be because the ram is bad?
Not compatible? (though I checked and a site said it was)
I knocked a wire loose while I had it opened up?