I have an Optiplex 780 Mini-tower with a Pentium Dual Core Processor E5400, 2.7gHz 800mHz Bus and 4GB of RAM. It came with Windows 7 Ultimate 32 bit OS. Can I use Windows 7 Ultimate 64 bit OS ?
Yes it can run Windows 7 64 bit and Dell have provided all the necessary drivers for both the 32 bit and 64 bit version of Windows 7.
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