ok, that's right. Now diskpart runs very well. but.... now I have another question: I have pacthed my Windows Sp1 cd to --> sp2 with AutoStreamer, and I make a WinPE boot cd with the lastest version of BartPE.. but when I start installation of winxpsp2 from command-line, windows asks me some files (20-30 files) like: acverfyr.dll asfsipc.dll dbmsadsh.dll dxmrtp.dll ...in my win-sp2 cd I haven't got these files, but they are in my previous version sp1!!! how can I start a win xp2 installation correctly from winpe-command-line?!? why I alredy haven't got these files!? thanx a lot!