prathapml Success at last!! I've been researching how to achieve this for about 18 months & a clean install due to a new motherboard was the incentive to do it. I can't put into words just how grateful I feel for your help with this I'm now in the postition where I can at least return a small snippet of information: the Program Files\Common Files folder must be specified or it will default to a 2nd Program Files folder on the OS partition. My 1st attempt with a new winnt.sif omitted that line with the extra quote then was rewritten to include it with the correct syntax for the 2nd successful install. I inialally also tried to include monitor settings which didn't work - no matter, stuff like that can easily be done after installing. Other settings such as time zone were cut & pasted from the unattended.txt file generated by setupmgr.exe were incorrect & I suspect this version is a bit buggy (2180). The 1st task after disabling System Restore was to install X-Setup Pro & change my account profile settings by moving most of stuff like Cookies, Favorites, Desktop, Application Data, SendTo (Shell folders) to a 3rd partition. I left the Local Settings system folder alone because it contains a small bit of the registry hive there. If I trash the OS, my account or want to completely uninstall any application, I simply restore an image of drives C & D as a pair & hopefully rarely have to restore E where my data, settings & docs will be located but imaged from Task Scheduler on a weekly basis during the night (Drive Image 5 will reboot into Dos, image then reboot back into Windows then return to Standby mode). Some settings such as the date structure for IE History are actually stored in the registry & not in the History folder itself, so I can also schedule a batch file once a week to save these keys (Extensible Cache) in case I need to restore C&D. This way my system doesn't need much doing to it after complete restoration which takes less than 30mins. This setup also leaves my OS partition in a fairly read-only state where fragmentation will be minimal. When I can afford a 2nd SATA h/d, I will remove my 1 remaining loud IDE disc & boot off the SATA array then connect both DVD & CDRW both as masters with 2 slave channels spare. Then I can buy a new XP3200+, 2x512MB PC3200 RAM, etc.....! Once again, you helped me greatly with this project! Regards