#Will office 2016 64 bit overwrite 32bit install

They tried to read a program file in the 'wrong' bit.ДЄll 'Office' programs since 2016 (and partially in 2013) have been primarily associated with your email account. So, if you were able to mix 32 and 64 bit installations, programs would crash when

It puts the files in the same location as 32 bit program, with the same file names. The problem is that MS was lazy / sloppy about how the 64 bit program code is located.

#Will office 2016 64 bit overwrite 32bit install

The Office installer actually checks and blocks the install until you uninstall all 32 bit Office program code. No you cannot 'upgrade' from 32 to 64 bit Office. Is it really no other way for this? Thanks for the thoughts. I just don't want to do those customizationsДЄgain once I reinstall the 64 bit version. Obviously, the third answer has become the most painful one to read, since I have to take notes on all customizations I've ever done to the 32 bit version of my Office 2016 before I install the 64 bit version. But I guess you're right, I'll uninstall the 32Дoes it have to be linked to my Microsoft account? Is the key not stored in the registry? It's the same Office 2016 though, just not the same bit version. So, I can't just overwrite the 32 bit with the 64 bit version? I thought I can just 'upgrade' it by overwrite it. Yes you will need to customize Office again. Locate your Office 2016 licence on that page and then just click Install and if you're not already signed in, select Sign in

No, you will not need you product key again if Office is linked to your Microsoft Account You must uninstall the 32bit version of Office, before you install the 64bit version, they cannot co-exist on the same PC