1) 64-bit has bigger overhead. If you have, for example, 8 GB maximum (e.g. a notebook) then you'll have the advantage of having more RAM available by using 32-bit system. If you just use a notebook for surfing, you wouldn't care. If you did something that had specific memory needs, it was the best solution before the notebooks with more RAM possible appeared.
2) Other hardware compatibility as there is still enough hardware without 64-bit drivers. But don't expect too much there: some kind of such hardware will have problem with this patch though. You'd have to try to be sure.
Now that even notebooks allow 16 GB the patch is becoming less relevant.
1/If you have 8 GiB of RAM, and you just surf, you don't care about the 64-bit overhead. Also 64-bit is more convenient as browser tend to flirt with the 2/3 GiB process limit.
2/If you have 64-bit machine, this problem is unlikely to exist on Windows.
acqq|12 years ago
2) Other hardware compatibility as there is still enough hardware without 64-bit drivers. But don't expect too much there: some kind of such hardware will have problem with this patch though. You'd have to try to be sure.
Now that even notebooks allow 16 GB the patch is becoming less relevant.
shin_lao|12 years ago
2/If you have 64-bit machine, this problem is unlikely to exist on Windows.
LeeLorean|12 years ago
You need a clean install, something many are hesitant to do, or can't do.