Forum Discussion
ADumith
Aug 10, 2023Iron Contributor
Migrating from Office 2019 32-bit to Office 365 Enterprise 64-bit
Hello everyone, I have to carry out the conversion from our Office 2019 32-bit to Office 365 Enterprise 64-bit. For this purpose, I have downloaded the installers and have constructed the followi...
manoth_msft
Microsoft
Aug 14, 2023Do you uninstall Office 2019 first through another process? If not, add the following statement to your XML:
<Remove All="TRUE" />
This will instruct the setup engine to uninstall ALL C2R-based products (this includes Office 2019) first and then install the Microsoft 365 Apps.
Otherwise setup runs into two conflicts. 1) Office 2019 and Microsoft 365 Apps can't co-exist on the same box, plus 2) the existing 32 bit install and new 64 bit install have a "bitness mismatch". Everything Office-related onthe box must be either 32 or 64 bit.
<Remove All="TRUE" />
This will instruct the setup engine to uninstall ALL C2R-based products (this includes Office 2019) first and then install the Microsoft 365 Apps.
Otherwise setup runs into two conflicts. 1) Office 2019 and Microsoft 365 Apps can't co-exist on the same box, plus 2) the existing 32 bit install and new 64 bit install have a "bitness mismatch". Everything Office-related onthe box must be either 32 or 64 bit.