Online volume problem

Ok so i was deleting some things from program files on my pc that i thought i didnt need. Obviously i deleted something i did need becuase now when i try watch videos online such as you tube videos theres no sound. Volume does work for windows media payer but i cant put it up or down it just stays the same. The mute button also doesnt work.
Someone help me please.
Thanks in advance.
Answer #1
do you have regular sound
Answer #2
do you have regular sound
Ya sounds works perfect in windows media player and on msn
Answer #3
do you have regular sound
Ya sounds works perfect in windows media player and on msn
than i suppose there is no problem with ur windows.
it might be from youtube.
are u able to play those files from youtube??
Answer #4
did you try on other sites besides youtube?
Answer #5
did you try on other sites besides youtube?
yea yahoo news
sound didnt work there either
Answer #6
Iv tried updating my web browser but that didnt work either. Any suggestions?
Answer #7
Get your recovery disc and recover the sound driver, or download it from the internet.
Answer #8
Get your recovery disc and recover the sound driver, or download it from the internet.
Iv tried going onto the microsoft update site up my browser cant seem to open it, iv got the latest browser