Can I install 32 bit Windows Vista over 64 Windows Vista without reformatting?

by on March 23, 2010

Q: I’m running Windows Vista Ultimate 64bit OS and am having multiple compatibility issues and installation problems. I’ve acquired a Windows Vista Ultimate 32bit OS and would like to install it. Do I have to reformat my hard drive and lose all my programs or can i install the 32bit OS over the 64bit OS? Will this action convert the 64bit OS to 32bit?

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One Response to “Can I install 32 bit Windows Vista over 64 Windows Vista without reformatting?”
  1.  
    Picked as best answer

    Switching from 32 to 64 or 64 to 32 for any version of Windows requires you to reformat and install Windows from scratch. There isn’t any way around this one.