New build for Windows 7: Do i install 32bit OS or 64 bit OS?

[welchs101]

Hi,

I just built a new computer........powered it on.......and it came to life. SO excited. I opened up the OS and found two windows 7 disks. One for 32bit software and one for 64 bit. I am not sure which one to use.

This is the system that i built.
*******************************
Antec NSK 4482B Black Computer Case
Item #:N82E16811129072

Seagate Barracuda 7200.12 500GB 3.5" SATA 3.0Gb/s Internal Hard Drive -Bare Drive
Item #:N82E16822148395

LITE-ON CD/DVD Burner - Bulk Black SATA Model iHAS124-04
Item #: N82E16827106289

BIOSTAR A880G+ Micro ATX AMD Motherboard
Item #: N82E16813138283

WINTEC AMPX 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory
Item #: N82E16820161279

AMD Athlon II X3 445 3.1GHz Socket AM3 95W Triple-Core Desktop Processor
Item #: N82E16819103872
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Also, this build is for my parents and they currently have an older dell running windows XP pro...i am sure this is 32bit. They do have some peripheral devices like a printer and a few other things which they will want to use with the new system.

Just not sure which to install.

 

[Proximon]

In most cases 64-bit will be best. Install that and if there are any problems with their software or drivers being compatible you can always install the 32-bit. Most programs will run in compatibility mode if nothing else.

 

[welchs101]

Best answer selected by welchs101.