This isn't exactly true.
While 32bit processors do have DEP support
([URL="http://en.wikipedia.org/wiki/Data_Execution_Prevention"]http://en.wikipedia.org/wiki/Data_Execution_Prevention[/URL]), it isn't as robust
as 64 bit (at least last time I checked, which was about 3 years ago).
Also, the Windows kernel is different in 64bit with how drivers are
trusted - making it *more* difficult to get malware in the kernel. It is
another layer of protection, but won't prevent all bad things happening.
With regards to memory amounts - I am actually surprised to see only 70%
utlization of the memory, since prefetch is pretty good at eating up memory
not in use. You can read more about it here
[[URL="http://en.wikipedia.org/wiki/Prefetcher"]http://en.wikipedia.org/wiki/Prefetcher[/URL]], but the short summary is that
prefetch will load commonly used files into memory before you need them so
that when you access them they will open very quickly. If you need the
memory instead, the memory is still available to you, and whatever is cached
in memory will be dumped so your application can have this memory.
Because of prefetch, it can be beneficial to have more memory than your
applications use, as Windows will find a use for it.
On my x64 laptop I have 4 GB of memory, and almost never have to wait for
things to launch or page in memory.
"Patrick Keenan" wrote in message
> "cogs06" wrote in message
>>
>> I decided to operate 64 bit due to it being more secure when online,
>> especially as I do all of my banking and other personally sensitive
>> things with my PC. When Intel released a statement a couple of years ago
>> stating that the PC was never designed for such things, surely evrything
>> that is available to make it safer should be used?
>>
>> cogs
>>
>>
>> --
>> cogs06
>
> You may be confusing the length of encryption keys (where longer is
> definitely more secure) with the length of the codes used to program the
> OS.
>
> 64-bit OS's are not inherently any more (or less) secure than their 32-bit
> counterparts, when configured identically.
> >> Stay informed about: [Solved] How much RAM should I have - Vista