1. 

   GaryG Private First Class

   Thse are dumb questions because I am a retired mainframe tech support person, and I should know better, but pc's aint mainframes; and Im getting senile; and I just gotta ask
   
   if I have a 64 bit processor, can I still run a 32 bit operating system.
   
   Next, if I have a 64 bit processor and a 32 bit operating system, can I run a 64 bit program

    

   GaryG, Dec 9, 2006

   #1
2. 

   DavidGP MajorGeeks Forum Administrator - Grand Pooh-Bah Staff Member

   Not dumb questions at all Gary.. but age does fry the brain a tad
   
   Yes to 64bit CPU running 32bit OS as they are backwards compatible.
   
   No to CPU on a 32bit OS running a 64bit application

    

   DavidGP, Dec 9, 2006

   #2
3. 

   GaryG Private First Class

   Thank you for the info, Halo.

    

   GaryG, Dec 9, 2006

   #3

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