How To Fresh RE-install Windows 7 System Only with old Driver.

hello.

im a user of original 64bit win 7 Home Premium . using Toshiba Satellite P755.
i use core i7 2670QM 2.2Ghz with Boost. Nvidia GeForce GT 540M 2gb vRam. 4gb 1333hz ddr3 ram have Bluetooth. Wireless.1 partition of 640gb

im using perfectly windows 7 with nothing fail. but im about to fail now because my windows system now are so crash.

i never backup anything. but installing to many games at once.

so the sistem start to crash after i dont have an antivirus for 2weeks. and my hardosk is about 36.0KB free of 600GB now the hardisk drive have back about 70gb after several delete.

Note: i buy a leptop with already installed fresh windows. So No Windows 7 DVD.

firstly with the error 2203. internal error where i have limited in installing and uninstalling
program that use windows Installer. i cant even install angry birds!

secondly, when im trying to update several driver manually after windows update fail.
My bluetooth start to fail, Showing error 43(Device Manager). then i rollback. it shows error 10.device cannot start. even if i restart windows 7 several times.

thirdly. i managed to clean this error 2203 with 1month google and trying several. BUT, it starting to be weird after that.

So, after all this mess i've created. im starting to think for no more solution instead of FRESH SYSTEM INSTALL.

but the main problem is.

1 :i have no win 7 Home Premium DVD. can i download it at microsoft?

2 :i dont care if i loss ALL the data nor installed software. but i do care about the Driver in my Laptop ex:Nvidia Driver.
Intel Driver. i dont want to reinstall every driver back by googling for download because i may have missing something.
can i backup it?

NOTE: all i wanted is just a fresh system with main driver or hardware. is there a way of doing it without fresh install if it more more easier then it. Such as downloading a fresh system restore .iso file?

TY, btw. dont give me simple answer the give me headache, im not pro with computer

Everything you need is here to Clean Reinstall - Factory OEM Windows 7

Note:

The installer is mostly driver-complete, with newer arriving quickly via optional Windows Updates. Just in case, have your Wireless or Ethernet LAN driver on flash stick or CD so you can install it to get online quickly - these can be found on the Support Downloads webpage for your model computer . Then enable hardware driver auto-updating and check for optional Updates.

hello, i have download the Windows 7 home Premium x64 SP1 and burn it to DVD.
can i reinstall back it system ONLY? with all the program back?

Read the tutorial to learn how to find the programs you'll need to reinstall. A Clean Reinstall only includes the OS. If you want the pre-installed programs and they are not available for Download on the maker's Downloads webpage for your model, you'll need to order Recovery Disks from maker's tech support.