Re: new installation
Yes you can choose the option just to overwrite the old os with the new one and keep all you data.
You will have to delete your programs becuase they wont work anymore unless you install them again.
Check out my Counter Strike:Source servers:
***THE DYNASTY***: 184.108.40.206:27015
*** GUNGAME ***: 220.127.116.11:27015
*** SOCCER ***: 18.104.22.168:27015