The system can still make a recovery CD.
The files needed are hidden in directories that are for just this purpose. But the rule is you can not re format the drive. The recovery disc, when you boot it, will work wonders and fix things. That is the easy part.
But I am telling the OP to start a backup plan first. We do not know for sure just what went wrong. Having another copy of the partition as a "clone" is one kind of backup plan that most people can do. It juts sound vulgar to have two copies on one drive. But it is a piratical nay to have a backup went you have just one huge drive.
So here is what I mean.
1. Use the built-in tools to make a recovery CD or DVD. The recovery stuff will fit on a CD. Avoid the R/W kind, not very reliable. The videso show how it is done.
2. Get a copy of the Free EASES drive partition software. I have used it many times and have found it to be very reliable. Shrink the portion down at least so there enough free space to make a new portion that can hold all the contents of system and your folders. Might have to be 40 GB or so, depending how much stuff you have.
3. EASUS has to reboot your PC one or two times. When it is donne, start it again and crate a new portion by making a copy of the active partition. Forgot to mention, it can only cloo0ne to free space equal or greater.
4. Now you can try the recovery disc. It should find and fix any errors in the original partition and reboot windows.
I am being conservative. He does not indicate he has any backup made. I urge him to do some kind of backup.
But make the CD recovery dis right away.If this is to much, he can just go to his local drug store and buy an external backup for about $69, big enough to hold everything he has.
The backup device costs less than a new Windows 7 install DVD.
Again. The Windows 7 recovery disc does NOT, by itself, contain a full recovery data set. It needs the special folders on the original install. So do NOT format the drive.
Reliable references:
http://windows.microsoft.com/en-US/windows7/What-are-the-system-recovery-options-in-Windows-7http://windows.microsoft.com/en-US/windows7/Create-a-system-repair-discWindows 7 System Recovery Disc is a bootable disc that contains tools to recovery and fix problems that in the Windows 7 OS. Links above explain it better that I can.
And yes, you can go ahead and try the recovery without the backup. Your choice. I am chicken.