Software backed DEP is not as secure as hardware backed DEP as there are still ways to circumvent protections unlike in hardware backed DEP where the prevention is done by the processor and cannot be bypassed.Īlthough a 64-bit Windows 7 installation seem to have all the advantages, there still are reasons to choose a 32-bit installation mostly for compatibility purposes. It’s just a matter of time when 4GB is simply not enough for the ordinary user.Īnother advantage of 64-bit Windows 7 is the added security of enforcing DEP (Data Execution Prevention) on the hardware level rather than on the software level like 32-bit Windows 7 does. Most modern computers already come with 4GB of memory which can be expanded to 8GB or even more. In contrast, 64-bit Windows 7 can manage up to 192GB of memory. 32-bit Windows 7 can only utilize a maximum of 4GB of memory. The biggest difference between 32-bit and 64-bit Windows 7, and one of the reasons why 64-bit operating systems even exist, is the increased amount of memory that can be addressed. Adding to the difficulty is choosing whether to have a 32-bit or 64-bit installation. When upgrading to Windows 7, users are already faced with the tough decision of selecting from the six or so different versions.
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