My Back-Up Files

I bought a Toshiba laptop in January. Tonight, just randomly, everything got SUPER slow. Programs began to freeze and I'm having to continously restart. I'm currently on the family computer. I can't seem to find the problem. I've deleted a whole bunch of "useless" programs and files. I've done a virus scan, but still it doesn't seem to be working.I recieved a "Product Recovery" disc when I got my laptop that I'm going to use, but I just have a few things that I wanted to make sure about before I did. Hopefully somebody could help me.In the manual it tells me that once I use this disc, all my data will be erased. Okay, so I put all "My Documents" on a Back-Up Files file? Does that make sense? There was a program on my computer that I used for it. I saved the File that's titled "Backup" in My Documents. If I do restart my whole computer, erasing all the data from it, what's going to happen with my "Backup.bkf" file? Will it still be in my My Documents folder?

I'm so concerned with that because I have SO MANY things that I can't just throw away. I've tried sending most of my stuff to my e-mail, but my computer is being way to slow to do all my files and folders. I can't even compress them and send. It's like it has cancer.Can anybody help me? I feel like such an idiot, but this is the only time I've had trouble with this laptop. I really can't just go and get it fixed with a professional. We don't exactly have a lot of money right now.