Two operating systems issue

Hello, friends,

I have some doubts like : If I have two partitions, a partition C: \ install where only two things: the operating system XP and Internet Explorer program. In another partition D: \ install Office, Photoshop and other software.

The questions: If it breaks down the overall functioning of the computer because the software, do everything resume functioning properly formatted and replacing only the operating system and Internet Explorer that are in the C: \ drive?. Do not have to reinstall Office, Photoshop and other software?. If so, would save much time and headaches.

You will have to install all over again. To fix the problem you should use a backup program like the ghost that comes with norton system works, for example.

Have you wondered if I understand correctly ... precise If we can not boot the computer software problems (you can not enter windows XP).Well in that case no need to install anything they have on the D: drive just format the drive C and install the operating system again the problem will be solved.
If that is not to what you reformat it again.

My advice is to do the following:
make 2 partitions on an operating system and all programs particularly in c: because if you erase the system will delete the programs.