Enrico, pse check that the WDMAUD.SYS, which is by default located in the C:\Windows\System32\drivers has the size of 82944 bytes. Some malware can camouflage themselves as wdmaud.sys, particularly if they are located in c:\windows or c:\windows\system32 folder. Thus check the wdmaud.sys process on your pc whether it is pest. 73 de Ansgar / DG2KBC