(((No Sound/Audio Issues- Acer 4100 travelmate windows 7 xp)))))

I Seriously Need help with my Acer4100 TravelMate- windows7 xp laptop- Just 4 days ago- I encountered -No Sound or Video Playback on the p.c.... I have been trying 2 solve & re-gain back my audio ?... but with no such luck??....Ive tried just bout everything possible.... including trying 2 (Find an Un-installer for these outdated/missing drivers on the p.c?..... When I tried 2 fix this issue myself??.... I did a scan on the system & was getting this message on the screen saying?.....there were @ least 17 drivers either... missing or out-dated on this Acer?... I was wondering if some one out there - knows exactly what 2 do with this (No Audio) problem I now face??.........don't exacly know... if I need 2 (Uninstall these old outdated drivers on here or not?)--- Ive tried almost everthing with trying 2 uninstall them myself? or try 2 download these drivers myself= but once again?.... (NO LUCK'- Screen indicated that what I was doing (Failed?) -So anyway.... If there is any 1 whom could stir me in the right direction/ solve this (No Audio) Blues ?... id surely would greatly appreciate any helpful, useful solutions!!..... Thanks In Advance!!!!.....#Peace!