had a look over the report- the french threw me for a sec ( I got a D in french class, heh), but no worries.
you have the VIA AC97 integrated audio. should work fine, for basic pc use and gaming. if you want to go for higher end sound (surround, etc) an upgrade card would be in order. is the sound not working currently?
for the rest of the system, overall its looks like a pretty happy box, decent components, etc. it sounds like you are having some slowdowns, and that would be from the hard drive. the report showed it to be almost full, 15% free. that would definitely slow things down....
I would suggest runninCleanup!
, a free tool that will get rid of cookies, temp files, all kinds of garbage that gets left on the system.
if you have any passwords for web sites on your PC (the auto-login thing), make sure you know what they are, as the cookies will be zapped. I reccomend against using auto logins anyway.
after running cleanup, defragment the hard drive. this should also help with performance. post back with how much space gets freed up, I am always curious to know....
do you do any type of gaming or multimedia stuff? you have an older version of directX (8.1) installed. upgrading to 9.0c would help with that stuff.
let me know how things go, if you have any questions, etc.