I've only had this new laptop with Win7 for a couple of days. My desktop runs vista. Boot up time is definitely faster, and I like the user interface better. My son used the laptop to make a video presentation for a school project and he claims the video encoding with Win Live Movie Maker was much faster.
I bought this laptop specifically for the 32 bit operating system, my desktop runs 64 bit. I have older programs, games & other things I use at work, that are incompatible with a 64 bit. To answer your question LEN, I guess you'd have to determine what you are using your system for. Running high end games and such probably requires a 64 bit system.
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