Many thanks lightsout So, it appears there is no problem with Win2k/bts using "method 2", right? and could that be only a "normal/random error"? I read a lot about that on this board, but I'm still experiencing some big trouble with Win2000. I'll first try with the Win2k cd only (it's rather old...It may be damaged but still looks good), then will switch to Win2K + SP4 and finally will give a try to Win2K plus SP4 and BTS. I can only try with a virtual machine, for now, not with a "real" one. (and sorry for my, really bad, english language )