Windows 10: can I install a 64 bit OS over top of my 32 bit OS

I want to install a 64 bit OS over top of my 32 bit OS. What do I need to do to before I can do this? Do I need to backup all my data or can I install the 64 bit version right on top of the 32 bit and not have any issues.

:)

 

32-bit or 64-bit OS?

Just search. There was plenty of discussion on that.
Some time ago there were issues with 64-bit adoption (availability of drivers, etc). But that's past.

It's no-brainer now. Go 64-bit.

64-bit OS will run 32 bit applications same as 32-bit OS
64-bit OS will not boost CPU performance, but will allow all 4 GB of your memory to be used (32-bit would limit it to 3.x GB)
64-bit OS will allow DX10/11 games to run faster because of better handling on GPU memory access

Cheers,

 

OS upgrade from 32 bit to 64 bit

Hi,

I have win 7 Home basic 32 bit license copy installed on desktop system, need to upgrade OS as win 7 Home basic 64 Bit,

Please suggest for the same

Reagrds

Santoshi

 

32-bit or 64-bit OS?

What would be better for intel core i5-2500, 4 gb RAM, video - geforce gtx460. Which would give the best performance. Im planning to instal 2 OS, one windows 7, second windows xp.
Im afraid that 32-bit applications will not run on 64-bit os or will be laggy or something. I readed somewhere that 64-bit os will boost cpu performance, is that true?