Q re: upgrading Win7 32-bit to Win7 64-bit

[SFC (Ret) Lyon]

I have two HDs, Windows says I need to re-format and re-install to upgrade - does that mean I have to wipe both HDs?  Or just the HD that Windows is installed on?

 

[SGT (Ret) Falconer]

I believe Windows only cares about the harddrive IT is installed on. But Im no expert so dont take my word for it.

 

[Goldberg]

Which ever drive you have Windows installed on. I would recommend a clean install, so save whatever is important on that main HD and put it on the other HD.