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I run windows XP both 32 bit and 64 bit versions on virtual machines, I understand the 64 bit OS does ocupy a little more RAM than the 32, but is it a big difference? I don´t do may things on windows so I don´t need too much RAM designated to my virtual machines, and I wouldn´t like to spend a lot of RAM on them, but should I use 32 bit rather than 64 bit and assign a little less RAM? or is not not much difference using the 64 bit? Thank you.

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closed as not a real question by Tom Wijsman, Ƭᴇcʜιᴇ007, Journeyman Geek, Sathya Jan 30 '13 at 2:46

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

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I don't see a problem here, it's up to you. –  Tom Wijsman Jan 30 '13 at 1:35

3 Answers 3

It does technically use more RAM than the 32bit version, but it's much extra (especially when you are using 4GB+). If you are not assigning more than 4GB of RAM to the virtual machine and don't have any 64bit programs to run on it, I wouldn't consider it worth the trouble. The 64bit version of XP was never properly supported by Microsoft and it has compatibility issues with several programs.

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Im an extreme novice on the subject but if it were me and because I know that 64 bit systems are ALLOWED to (not demanded to) use greater than a set amount of ram (4gb? or maybe 8gb?) I would stick with just 64-bit, more functionality, more uses. Downfall is that some programs require 32-bit systems and thus dont go throwing out that 32-bit xp because you have a 64-bit.

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64-bit Windows can run 32-bit Windows programs through WOW64. –  SecurityMatt Jan 30 '13 at 4:36

Like they say, if it aint broke, dont fix it. Unless you are running out of RAM on your host machine, then there is no need to change a thing.

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