Nvidia has announced that 32bit driver support will cease during this month, there has been a relative decline in 32bit support over the past few years, ranging from games to apple dropping 32 bit support on ios.
Since over 90% of games are already 64bit only it only makes sense for Nvidia to offload driver support for it. Nvidia hinted since December last year that 32bit geforce driver support will meet its end soon and that end is the end of this month.
‘Game Ready’ driver upgrades will only be available for 64-bit operating systems onwards ie. Windows 7 to 10, Linux and FreeBSD but critical security updates will continue to be provided for 32-bit OS users until January 2019.
Existing features like automatic game setting optimisation will continue to work on 32-bit systems however.