Can't install 64 bit OS on 64 bit processor

[speedlix]

I have intel core 2 quad q8300 running at 2,5GHz and 32bit windows 8.1 pro. I noticed that the other day when i was going through my specs of my PC and then i tried downloading a legit 64 bit windows from their site. when i got to running it, it said my system does not support this software and that i should turn to developer (microsoft).

I don't know what the problem is and could you help me figure it out?
thank you

 

[qazzi]

EDIT

read here http://www.thewindowsclub.com/your-pcs-cpu-isnt-compatible-with-windows-8

you can DL coreinfo here http://technet.microsoft.com/en-us/sysinternals/cc835722.aspx

 

[USAFRet]

You must boot from the install media (DVD or USB). You can't start it from within the 32bit OS.

Note that going to 64bit will be a full reinstall. You will have to reinstall ALL your applications.
Save your personal files (docs, etc) elsewhere and offline during the install.

 

[speedlix]

Thank you i managed to do it but i couldn't move in the boot order so i had to go to bios to change it. i put "usb-zip" and "usb-cd rom" as the first devices because "usb-hdd" didn't work. i still don't know which of them is the right one but it worked.