Asus Computer Blue Screen, then windows fail to boot up

Hey

So I am sorry for not having more information about my computer...seeing as I cant access windows anymore I have no idea what CPU, memory, etc this laptop has.

Anyway. So what happened today was I stated my computer it was fine and all of a sudden it went to blue screen.

This has happened before, but usually the computer restarts and it works fine.

Now at first i restart the computer and it says reboot and select the proper boot device so I restart hit f2 and selected what was my primary hard drive which is ST9750423AS.

Anyway i selected that and the computer wouldnt start. It went to the windows logo and would not start. After it went to blue screen again and restarted and prompted me to launch startup repair. Which i did then.

Startup repair found no solution and asked me to send this to microsoft, i did that as well.

After this I tried system restore...wouldnt work i get an error saying it cant find the file. Anything i try with repairs give the same result and so i restarted my computer again.

It wont get past the windows logo and when i hit f2 again...my ST9705423AS wasnt there anymore...i got scared and was thinking this is it all my files are gone and my hard drive is dead. However after numerous reboots...now it showed up again!

Alas i have no idea what to do next. I have tried all the options I knew but now this is as far as my computer savyness goes. And I know it isnt that far to begin with.

And I also tried safe mode, all the options that arise when you hit f8. And not one of them worked. My issue is simply, I cant get into windows.

When I try system restore the error message is 0x80070003.

I.e my computer cant recognize my boot device i suppose?

Also now that it recognizes my boot device again...when i try and start windows it goes into asus recovery mode and tries to reboot my entire computer. If i had a recovery disk and a windows 7 which...seeing as its a bought laptop i dont have.

Also i dont really want to do that since my computer was working fine this morning. And i have important files that I need so any help would be awesome...

Hello thanks for answering

I can access them, however chosing last known good configuration now automatically takes me to the same asus preload wizard where it asks to reinstall windows and wipe my hard drive so thats not an option.

I was wondering. Since i have no friends who use a windows computer...haha im the only one. Is there any way to create a recovery disk from a mac?

And also...i can access system restore on my computer...but as I said it shows an error and none of my windows repair options work.

I.E. My computer wont show me the last system restore point. It was the first thing I tried i have
had issues similar to this before...I always managed to fix it though this is the first time nothings working.

And occasionally i get a message saying BOOTMGR is missing...

And the only way to get by that is to hit f8...it takes me past that message and when i try any of the modes of starting up my computer it goes staright to asus preload wizard which I gather, wipes all my files.

I am stuck here haha.