OK..this was pure accident..i wanted to make a app to do this but windows already had this built in...or maybe came with the autopatcher installtion sets? i really dont know...
heres' how..
after installation of windows xp (fresh) there is a command other than ntbackup which saves the state of the system drive(c:\) into some location...& unlike other softwares the image is not of high size.....maybe its' gotto do with the file structure handled by windows....here's the best part...assume u make a backup in syntax " %&^88 back1.wz"
then u can restore using " %&^88 back1.wz -res"
only thing i dont know where the back1 is stored..
& yes..it is to be typed in "RUN" dialogue..........
heres' the sweet part..when u restore the restoration will be completed within a minute guaranteed..

i'm surprised this was never discussed here....i'll leave it to you guys to find out this command that u guys prolly never used..but good free utility..