Serious problem guys! I need help pls

Hello guys.

I'm having a very serious problem with my pc. First it was with lime wire now is nero!

I don't know what the hell is going on But something is really messing with my pc.

Yesterday i opened my pc and i realized that limewire was unistalled from my pc... now i realized that Nero was also unistalled from my pc!!
Could it be a virus?

I runned NOD32 but it didn't found anything..

I really need some help here guys... any suggestions??? :(

Now i just found out that the whole fable folder is gone!!! OMFG WTF is going on!

maybe you have disk errors, run scandisk:
open "My Computer" > Right click "local disk (C:)" and select "Properties>Tools>error-checking>start now"
with all other programs closed ;)

don't enable "fix errors" this time. But if it finds any errors, try to save any bookmarks, media and personal files and settings to floppy/CD-R before running diskscan with fix errors enabled, just in case you need to reformat.

or maybe you have a bad virus that NOD doesn't pick up try:
http://housecall.antivirus.com/house...tart_frame.asp

Do's sound like a virus,run the usual spyware stuff as welltry and get hold of trojan remover as well,good luck