It's very likely the OS partition is corrupted. Your best bit is to get an installation disc from Toshiba..how much I have no idea. I have a Lenovo which has a similar issue but I can seem to get to them to price such a disc. But hope you have better luck with your situation. However, I have seen OEM disc going for about $80 when on sale or maybe $102 dollars from B&H for a full version.
I have a Toshiba Satellite L875D-S7332 with Windows 8 that a friend gave to me. The warranty, if it even had one, has expired. The laptop suffered a jolt. I didn't think it was very hard, but evidently it caused a lot of problems. The issue came up a couple months ago and I gave up trying to fix it because it won't even start.
When powered on, the welcome screen shows "TOSHIBA, Leading Innovation" then a black screen with "Checking Media - Failed" then another black screen with "No Bootable Device -- Please Restart System" I have tried almost everything! I have read so many forums, watched multiple videos, and did a lot of research to troubleshoot, all with no success.
If you are kind enough to offer some advice I would greatly appreciate it, but please be aware of the following attempts that I have tried.
, no computer that I plugged the H.D. into recognized it. It is a 650GB H.D. so I would be VERY disappointed if it is dead. I just don't know how to confirm this and I feel like there HAS to be a way to fix this!
I removed the hard drive (H.D.) from the back of the laptop and then I purchased a USB adapter for the SATA H.D. to test it on another computer. After going through 3 different adapters to make sure it was not faulty
I can NOT access the recovery partition, which would be accessed by pressing the 0 (Zero) key and then pressing the power key to turn on the computer, or even Setup or SafeMode. I can ONLY access the BIOS screen, so I tried to change the BOOT MODE to CSM BOOT from UEFI BOOT (one forum suggested it and it worked for them). I was able to change this and restarted the computer, as instructed, BUT I get another error message "PXE-M0F: Exiting PXE ROM. No Bootable Device -- Insert boot disk and press any key." The problem is I do not have a Boot Disk. I wonder if I use a Flash Drive with install files for Windows 7, since the computer originally had Windows 8, if this would work. This is currently my most viable option that I can see. Please let me know if you have any other suggestions that I have not tried.
How can I fix this problem? If I have to buy a new hard drive, how do I get the recovery partition back? Do I have to manually make one? Is it possible to recover the data on this hard drive if it is in fact dead? This is the computer I ran my business on. Thankfully I had those files backed up, but did not have a proper backup/restore point established.
Thank you in advance for any help, info, or solutions offered!

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