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09-22-2009 10:01 AM
Have you read the sticky post regarding XP downgrade issue?, here
I recommend you to use XP-32bit, even for XP 32bit your model is still difficult to downgrade especially for beginner users.
You'll only have memory allocation advantage using XP64bit nothing else.
However, its do able but difficult to find the whole drivers.
BTW, I can not find any stores in my area that still selling XP-64bit.
Pavilion DV2922TX, XP-SP3 32bit, Intel T5750 2.0Ghz, Nvidia Geforce 8400M GS with 128MB, 4GB 667 DDR2, 250GB HDD