How to change from a 64bit to 32bit in window 7

[sanoin2006]

pls help me

 

[dodger46]

Windows 7 64 bit will run 32 bit apps. But if you have to, the only way is to re-install Windows using a 32 bit installation disk. If you don't have one you can create your own.

 

[wanderer11]

I can think of no reason to want to do this. 64 bit OS can run 32 bit programs.