Does this mean that the machine won't boot? If so, are you sure it's an
OS problem, and not a hardware problem?
Because it will wipe all my stuff too. I want to maintain my
registry, programs, data, etc.
Well, AIUI, unless W7 is radically different from earlier versions, an
install-in-place, AKA as install-over-existing OS will wipe stuff for
sure. IOW, you can't get there from here doing what you havew in mind.
OTOH, Repair should work, if the OS isn't seriously hosed. If you can
boot the SP0 DVD, you should be able to Repair your Win7, even if it is
an SP1. This is designed to leave all the essential stuff in place, and
a tedious round of updates will be needed afterwards.
But even with Repair, data loss can occur, so IMO you need to think
outside W7. My suggestion is a Linux live DVD/CD. Booting Linux from a
DVD without installing it will enable you to back up your data. Forget
the programs. Freeware and open source can be d/l and reinstalled.
Payware can be reinstalled if you;ve got the keys.
Borrow some time on a friend's machine, and d/l a distro (I use
LinuxMint). Burn it to a DVD, and boot it You can use it to do what you
really need to do: save your data. Either burn a bunch of DVDs, or
attach an external drive and copy the data to it (IMO you should have an
external drive anyhow). LinuxMint will see your HDD and the external
drive, so it will be easy (but tedious) to select the files and folders
to be backed up. Data includes any profiles generated by your programs.
If you are really adventurous, you might be able to repair the W7
installation from Linux, but you'd need more precise help with that I
can give.
HTH and Good Luck,
Wolf K.