System Restore Help

Alright, I want to erase everything on my C: drive and return to factory default settings while keep everything in my D: drive. I'm currently using Windows 7. I tried the F8 method but the "Repair my Computer" option isn't there. I also tried the method Recovery typed into the search bar but it can only restore to a few days back or a couple months back which isn't what I want. The other method was to use the "Advanced Recovery Method" but it says it "Could not find required recovery files". No, I can't use any sort of disc either since I don't have one. If anyone can help, it would be greatly appreciated. And trust me, I have done my research. This was my last resort.

The other method was to use the "Advanced Recovery Method" but it says it "Could not find required recovery files".

You have to make that disk. So unless you made it your out of luck.
I think what your looking for is Allow Win7 to Format and make a partition. the made partition is where it stores DATA.
Is this what you want?

check out Ed Bott:
http://blogs.zdnet.com/Bott/?p=215

Snuffy said:

The other method was to use the "Advanced Recovery Method" but it says it "Could not find required recovery files".

You have to make that disk. So unless you made it your out of luck.
I think what your looking for is Allow Win7 to Format and make a partition. the made partition is where it stores DATA.
Is this what you want?

Forgot to mention this but I'm not exactly a good at computers.
Anyways, I just want a fresh system recovery or whatever its called.
I just want it to go back to the way I bought my computer while keep all my files in the D: drive.
Not really sure what partition means. But yea, if the only way to make this work is to make the disc, could you tell me how?