I am using a recently purchased HP computer with 16 GB ram, 64 bit OS, running Windows 10 home.
The SW came with two disks, one was 32 bit, which was what I originally loaded, and other was 64 bit.
I have started using the 64 bit version of SW with the new machine.
I have not had any problems with Windows 10 running 64 bit with either Solidworks 2012 or Autocad 2004.
I do have some backup Windows 7 machines, but they don't have enough ram for what I do nowdays.
I have started putting all of my Autocad drawings for a given project in a single file, so I can copy/past from sheet to sheet, see all the sheets at the same time, and open one file to see every sheet.
I have files with up to 100 drawings in them.
Careful backup is a must with this method, but it saves me a lot of time and effort.
Typical Autocad users say I am crazy to put all my sheets into one file, but then I ask them if they make a living using Acad 2004 every day and processing a lot of drawings. They always say "no".
I do what works, not what is popular or commonly used.
I have found that generally once a CAD person has been trained, they won't change to a more efficient process for any reason.
An example is paperspace.
I stopped using paperspace many years ago, and use XCLlP only, and that works really well, and provides a "what you see is what you get" drafting environment.
I have never be able to get another CAD user to change from using paperspace to XCLIP.
Paperspace got so engrained that people could not even envision that anything could/would work better.
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