Hi! Every thing is ok now, coz I reinstalled NOD. But this is what happened: Yesterday I formated compaq presario and installed XP-SP2 for a friend and as usual I use NOD trial (by time I found that NOD is the best "really" if you do a cleaning or after an install until you sort things out). Every thing was running smoothly in such a way he is convinced to get a NOD licence in the future. Anyway I switched the machine off and when restarted this morning I waited for NOD splash screen to appear so that I can carry on(thats why I keep NOD splash screen to tell me about the start moment) it didn't appear at all! So I checked msconfig>startup entry and its there, then control panel>add/remove and again NOD is there, checked registry and NOD is there finally I checked Program files and I couldnt believe my eyes, ESET folder is not there . What could cause a folder to disappear?