Unable to start windows

i tried from my dad's laptop which is almost identical to mine, but on his it won't start at all. on mine it keeps saying it's no bootable device. my dad changed the usb to a 64bit (not sure what exactly he changed, but it worked). my laptop started from the usb and i got multiple options to recover my laptop. as for the system restore options, it wouldn't work because it couldn't find any backups on my laptop (i'm not sure why, isn't my laptop supposed to make these by itself?), so we tried system recovery which worked and after, it said i had to restart my laptop so it could solve the problems. to no avail though, my laptop still won't start properly and the usb will not work no more either. i do get another screen when i try to startup, it's got the same error (microsoft can't start because of a recent chance in hardware/software---), but different options this time, of which none work.

i tried deleting the files on the usb and putting them on again, and found that windows (i don't know if it's supposed to) places a file on the usb everytime you start it, and when you leave the file on the usb, it won't work on the laptop no more. when you delete it after, though, it'll work the next time you startup.

i also found that when i go into bios settings and it gives you your system specs, it won't specify my hard drive. it's empty.

I have had problems with finding restore points before, so thats nothing new to me.
However I am supprised that the Repair Windows option hasnt resolved the problem, and we know you havnt changed any Hardware or Software.
If the repair process hasnt worked, try run the process one more time and restart again. If it continues to fail the second time, then we are looking at a complete new Windows Installation from a Windows 7 Installation CD. Which Im guessing you dont have to hand. Just to verify, you require Windows 7 Home Premium 64bit Edition?

yes indeed^
please read my last post, i edited it.

and you do have a Windows 7 Home Premium licence key? The holographic sticker with a long code usually located on the bottom of the laptop?

yes

Ah, sorry I didnt see the edited post. So the laptop has lost the hard drive all together now.
Unusual, even damaged hard drives will still show their existance in bios.
Aslong as your not looking at a list of IDE devices instead of SATA devices, which your hard drive will fall into.

So you dont have a Windows 7 installation CD? If not I will see if I can locate a OEM version for you and make it into an ISO image. When you install a complete new copy of Windows you will need the Licence Key from the bottom of your laptop to register the new installation, and most likely once the installation is complete you will need to download the required drivers from Toshiba's website for your Audio and Graphics etc.

Do you want to give this a go?

i'll try anything! it can't get any worse than it is now and i'm already screwed since i need my laptop for school so..

ok! thank you so much!

Hey Mr. Biker "pal", if as you suggest her HD is kaput then why would you be suggesting OP clean reinstall with a Windows 7 DVD image you are going to provide? That should be the last resort after helping boot the Repair CD, or testing the HD with the maker's extended CD diagnostics/repair scan if it is in doubt: Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp

I never suggested once her hard drive was 'kaput' and I don't believe it is. I think we are dealing with a corrupt partition. You can ask this girl to do these tests, do this and that but she is no computer expert, and I believe the easiest suggestion is to wipe the existing partition and start with a complete clean install. I'm only here to try help her and make it easy and simple for her to understand. This is no 'whos the smartest' competition, so wind your kneck in 'pal'