Ok, I have two 500gb HDD's like the title says. Both are Seagate Barrucuda 7200.10's. Both were in a gaming PC I bought from a guy. He booted and let me look at it, and even test Bioshock infinite and skyrim on it. Now these HDD's had windows 8 on them before, but I wanted windows 7, so I went ahead with the installation not thinking about the secure boot. Get on their, and says it won't let me doing anything because of secure boot. So I get the idea to go to the other HDD, and put windows 7 on it. That one seemed ok with letting me format and install on it. So I figured, ok, just got to boot from this HDD instead, and format the other one from within, or find a work around. Well windows 7 let me create a user, everything going fine, even formatted over the other HDD and basically took it over with windows 7 (Not sure if this is a fail on windows 8 part letting me do it, or if the HDD was acting up???). Anywho, install some games, going great, playing the games. Now I was just doing normal day to day tasks, and windows 7 starts acting up, almost like it was slowly wasting away, then couldn't boot into windows 7 anymore, SAYING no MBR could be found. So I re-installed windows 7, installed games again, same thing happened again... Try to re-install windows 7 a third time, and it says it can't on both HDD's because of secure boot. So my first THOUGHT, was the motherboard was the culprit. Tried both HDD's on different PC with windows 7, and it said no to formatting because of secure boot. I then tried on a linux based pc, to see if I could format over it with any of their formats, said no to that to. Then tried DBAN, and couldn't boot it because secure boot wouldn't let it. OK, so now I use a different HDD from a different computer, a Samsung 120gb, in the gaming computer, to see if it would work ok and everything. Install windows 7, install video games, play video games. Everything was fine! No issues whatsoever. I order a 120gb intel SSD, switch it out, install windows 7 etc etc... Worked fine with the SSD as well, no issues. So anywho, what does everyone think??? Are they failing or is this an HDD setting holding onto the windows 8 secure boot possibly??? Let me know what you all think, any possible solutions... Would be nice to save a whole 1tb of memory from being trash .

P.S. When I would check the motherboard for the gaming PC, secure boot OPTION to turn off and on, was not present at all, for any storage device installed on it, including both 500gb HDD's. Lastly, I noticed the number 2 500gb HDD, would sometimes not be detected, and this was on all computers I tried it on, with all motherboards. Number 1 500gb HDD, was detected all times.

P.S.S I made sure everything was spinning and moving on the inside, so nothing is dead dead...From  your post, it would seem you  have done all you could.
Yes, it looks like both of those 500 GB drives are bad.
You didn't say which motherboard you have and when you bought it. Some motherboards do not come with a secure boot feature. It is hard to know if the secure boot error message was correct. But you only got the message on those 500 GB drives. It may have been some kind of failure with those drives falsely triggered the secure boot warning. Without anymore details of model number of your motherboard. It makes it hard for anyone to research the issue.
In my opinion, you can go ahead and use the system with the drives that work. Those drives that don't work well should be used as door stops.
That's the best I can offer.The motherboard is an ASUS P8P67-M. But like I said, I used both HDD's in another computer, completely different motherboard. Hope I don't sound like a smartass by saying this, but the motherboard can't telepathiclly tell the other computer to say the same thing. So my assumption is that they are dead like you said... But it's pretty unlikely both failed at the same exact time, and everything still spins and there is nothing telling the HDD to format or not format. So it makes no sense to me. But, it is possible in the world that a coincidence such as both failing at the same time, could be possible.Well, if you to spend a lot of time you will find out why. I have a tthery, but without tests it is conjecture.  It might be possible to recover both drives, but the tools and time  needed to do it are more costly  than the cost of two refurbished drives.
In other words, refurbishment is something for the experts to do.

Refurbished 500 GB 7500 rpm STA goes for about $25 on eBay.
What is your time worth?
Hmmmm, ok then... However, since we are on the topic of tools, are their any you recommend to recover them??? I would like to do so, and learn in the process. Would be a side project for me later on to expand my knowledge base. I have cracked passwords for people who got locked out, recovered a couple deleted files and saved PC's from rootkit/malware/virus etc... I can research myself if you would like me to, but, figured I would ask first . Besides, coming to the forums is a time saver from doing unnecessary work from going in the wrong direction. After all, what are forums for ???First of all, you have to get around the secure boot. One way is to use an older motherboard that does not have it.
You have to boot up the machine with a clean drive. The try to rread one of the bad drives as either a secondary or an external.

There are a number of programs that can wipe a disk clean. On is a partition program in Linux called GPartd.
http://gparted.org/

A program for Windows.  MiniTool® Partition Wizard
http://partitionwizard.com/partition-manager-server.html?gclid=CKau9Yiry78CFQqIfgodv1gA-A

Diagnostics from Seagate.
http://www.seagate.com/support/downloads/seatools/

None of the above address physical issues. If a part of the disc surface is badly damaged, there is little you can do other that map it out. If the defect is near the inside of the disc, don't partition the whole disc Maybe you will get a 470 GB drive.
If the defect is at the start of the disc, create a small partition there, then a large partition after it. Then delete the small partition so the the stat of the disc will not be used. Doesn't always work.

The sea gate tools ave very good, but takes awhile to learn them.

ALSO, EASEUS has free partition and recovery software.
http://www.easeus.com/
Hope that helps. 
Well I already tried Gparted on my linux PC. That was a no go... However I waited on seagate seatools until I asked to save me time. I will try that next, then I will get around to trying easeus IF the seagate seatools doesn't work... Will post a reply for sure if it works or doesn't.One lost thing. The entire hard drive surface is not exposed to the world. The maker crease hidden areas  on the surface that store information about the geometry of the drive. Normally no software program can get to those areas. However, very special tools can read those areas and provide a history of the drive.
That helps to explain why a drive may have a fatal error that can not be recovered by normal tools. If the hidden area becomes damaged, the firmware can not find the drive layout. The drive will not respond to commands. It just does not respond.  A timeout will occur. 

I believe the article below is related to this.
http://superuser.com/questions/642637/harddrive-wipe-out-hidden-areas-like-hpa-and-dco-also-after-malware-infectio
Hello, just to let you know, I have used seatools for drive one, and it seems to be working. I did all tests and they passed, so I went ahead and wiped it with seatools. I also went to update the firmware, yet it was all up to date. So, I went to install windows 7 on it, and on the drive it didn't have the secure boot warning icon, it was just plain ol'drive with nothing saying I couldn't. I installed it, and I am on it currently writing this message. So for now, it seems fixed. I am going to get seatools again and try it out on the second, and see what happens. I have a feeling this one will give me the most trouble... Oh well, here goes . Will update soon.

p.s. Sorry for slow reply, BUSY with stuff. And thanks for the link for the hidden areas in drive. That will prove useful for future events.Glad to hear Sea tools was helpful.
At this point it is hard to know exactly what was wrong with the drive.
Here is a conjecture. Another computer put a root kit on the drives and the secure boot feature caught it. This is purely conjecture.
A root kit can refer to any clever software that controls the computer at a very low level.
http://en.wikipedia.org/wiki/Rootkit
Quote

Rootkit detection is difficult because a rootkit may be able to subvert the software that is intended to find it. Detection methods include using an alternative and trusted operating system, behavioral-based methods, signature scanning, difference scanning, and memory dump analysis. Removal can be complicated or practically impossible ...

Now do I close this thread, or does someone here do that for me???