the new default location for the Gridcoin Research install will be your "Program Folders" directory, not the previous 32 bit "Program Folders x86".

Thanks for that piece of advice.
At least the application data is stored in the same location so this change only effects existing links and scripts, the wallet will work as normal after the update.

I noticed that the installer hasn't removed files from the Program Files x86 folder, should I manually delete the obsolete GridcoinResearch folder?