Based on my brief research, the version of Windows 7 you can install (with respect to 32 or 64 bit) is based on what processor you have. I just bought a Dell Vostro, with a i3-350M Processor, and as far as i can tell, it should be able to run a 64-bit OS. Please correct me if i have the wrong impression of how it works.
Last night i installed the Windows 7 Professional (x64) Version, but on my Laptop it is the 32-bit version 🙁 (AFAIK The 32-bit version == x86 version). Now its possible i installed the wrong one but very unlikely.
If i goto Device Manager it says under the Computer branch: ACPI x86-based PC, does this mean i can't install a 64-bit OS or is this related to the fact that i have a 32-bit OS installed currently? Also, under Control Panel->Performance Information and Tools->Advanced System Details, it says System Type: X86-based PC. Again, Am i just mistaken that the version you can install is based on the processor? or can my processor just not run 64-bit OS?
Please clear my confusion as i have a feeling its probably something simple :), Also being stuck with 32-bit is no problem i just figured why not install 64-bit if i could.
EDIT: All references to laptop in this post are to the new Vostro. Common belief is i used the wrong install 😀 Will check tonight and add an update. Thanks!
Best Answer
You likely tend to have the 32-bit version installed. As you assume, the
ACPI-based x86 PCis a clear indicator for that. Moreover, you could double check using the System Properties or msinfo32 or ...As you can read here http://ark.intel.com/Product.aspx?id=43529 your processor is certainly capable of 64-bit instructions and so running a 64-bit OS.
When it comes to OS installation in general, you will almost always need a specific installation media, i.e. x86, x64, IA64 etc. The good news is that you can use your existing license key regardless of whether you install Windows 7 (even Vista) 32-bit or 64-bit. The bad news is that if you have more than about 3 GiB of RAM you'll need a 64-bit Windows to use the whole amount. Check the available RAM under the Task Manager (not System Properties). Read more about 64-bit Windows on this SU: 32-bit vs. 64-bit systems