Hi I am new to this forum. Found this thread after google on MSDINST.exe. I have found some steps on the net but somehow wasnt success to inject mass storage driver into an XP image. I need some help and will write down a simple step of my testing with the following example. 1) I have a new laptop HP NC6400 2) I load it with Lenovo T61 XP image with its own set of drivers 3) I boot it up and it is fine. I check msinfo32 and got a listed of incompatible drivers and one of them is Mass Storage Drivers. 4) So following the step I reboot the machine and boot up with WinPE 5) Copy all related INF to C:\windows\INF and other SYS and CAT or PNF to C:\windows\systems32\drivers\ 6) Create sysprep.inf file with the PNP ID = the location of the INF / SYS file 6) Run MSDINST.exe sysprep.inf c:\windows 7) It says successful 8) Reboot the machine as normal and load Windows. 9) Check on msinfo32 I still found Mass Storage Driver is still a problem component. Anything I do wrong. Previous posting in this forum mentioned something about changing the registry. which I have no idea what is all that about. Appreciate your help