Hi! I have Toshiba Satellite C855 - 2G7 with pre-installed Windows 7. I upgraded Windows 10 and the problms started.At first I went through the black screen after boot and I couldn't fix it so I started booting my PC with the option enabling low-video resolution. So this went okay. After that I couldn't roll back to Windows 7, it said I have to delete the accounts I made using Windows 10 and I just gave up because I haven't made one. After all this,, my PC just refuses to boot due to "UNMMOUNTABLE_BOOT_VOLUME" and I just gave up. Decided to re-install Windows 7 but I can't get my computer to boot from CD/DVD. In my BIOS settings I have something called ODD which I figured is optical digital device and changeg the boot priotity but it still can't boot using cd/dvd. Please help me, because I'm that close to throw that computer.
Oh I don't have the original Winodws 7 disc because it wasn't me who bought this PC so no one knew that it had to come with it.
Oh I don't have the original Winodws 7 disc because it wasn't me who bought this PC so no one knew that it had to come with it.
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