I had built a 32-bit desktop PC in Dec 2007 and installed on it Windows XP Prof, upgraded it to Vista, and then upgraded to Windows 7 Home Basic.
Now I am planning to build a 64-bit system. Will the same 32-bit Windows 7 work on this system? If it does not then matter ends here, but if it does, then to what extent the performance of 64-bit system may be compromised?
I have HP 1010 Laser Printer and HP F380 All-in-one. I remember, when I upgraded OS to Vista and then in quick succession to Windows 7, there were no drivers available and it took very long for HP to provide drivers but with relatively limited functionality.
That makes me wonder if these will work with 64-bit system?
If something has Windows 7 drivers it likely has both 32 and 64 bit versions.
A 32 bit OS will limit your RAM to 4GB. Other than that and a few memory optimization tricks that 64 bit does better than 32 bit there is no difference. 64 bit systems will not run 16 bit programs so basically anything already obsolete when Windows XP was new will not be supported by a 64 bit OS.