sir i have toshiba laptop L640 which consist of i3 processor , 3 gb ram and 320 hard disk. yesterday my windows corruped. i install fresh window 7 deleting all drives and every data of my laptop . now i am facing problem that when i start my laptop it takes lot of time near about 3-4 minutes to start . it freezes on windows 7 logo for 3-4 minutes . and after that it works perfectly. now even i install nothing on my laptop but same problem. i also try windows xp on my laptop but again same problem without installing any software even i did not install its driver also. pls give me solution.

it takes lot of time near about 3-4 minutes to start . it freezes on windows 7 logo for 3-4 minutes . and after that it works perfectly.

whats the problem
its normal
windows need time to load
and , after its loaded , no problem ? then no problem

you cannot expect a large OS to load in a second

buy or build a desktop

but i have one more laptop of dell company of same configuration. that laptop does not take 3 - 4 minutes to start , it will start in only 1 or 2 minutes

im not sure , but
i think i3 is a 64bit CPU

if so , did you install the windows 64bit version ?
what was the original version ?

you cannot compare 2 laptops unless the are the same