HELP ME PLZ urgent

[lovely_125]

Mai Nod32 Antivirus use kar raha hon.
Mera Masla ya hai jab mai memory card ya usb apnay pc mai lag kar scan karta hon
nod32 and tamam Antivirus usay bilkul saaf dikha raha hai ..and jab mai Memory card ya usb ko double click karta hon to ekdam pc hang hojati hai. aur restart karnay k baad Follwing Erorr dayta hai...........

FMOD couldnot found initialize Direct sound
MMBuilder will run without sound support
Error Intializing output device

also registy and task Manger ko gaeeb karta hai .
and also ye tamam data ko bi deleat kar dayta hai....
but harani ki baat ye hai hiden file bilkul show ho rahay hain........

Ye Masla har memory or usb mai nehi dayta hai chand ek memory or usb pay,
plz help me .... wht solution for this erorr..
and i also attech the screen shot Erorr
PLZ Expert Solution ............................ .....