Yea, just put that disk in...
you may have to press f2 while starting the machine, set the boot priority for CD to be number one. Hard drive will be number two.
Then you let it run, don't reformat or delete the partitions, then you get to:
press R to repair existing installation. (read each stage carefully)
then it installs without deleting your personal files.
Then after it's running, install your drivers from the driver CD if you have the CD.
You might need to install drivers after a repair install.
Or if not, go to the manufacturer's website and download your motherboard drivers.