ilko_t, Thanks very much for your help. I was confused about what WinSetupFromUSB does, but I answered my own question, and I gave your procedure a shot as you suggested. However, the program refuses to let me select my source folder: it keeps saying that dosnet.inf is not present and that the source is therefore invalid, but dosnet.inf is present! I try to manually enter my source folder, but the program rejects it and refuses to continue. Any suggestions? Best, xenolalia