I dont have any issues with Windows 10 at all, all other games on ubisoft works well is just Far Cry 5 some dont working, and noting else is broken is just the game, so can not blame Windows for this issues can only blame Ubisoft for this, becouse Windows has noting to do with the game.
This is not the only issues i had with FC5 its start to be so many issues am thinking of take ubisoft to ECJ Court of Justice of the European Union becouse they dosnt follow the Europen Union Digital rights, + am start to get lack of the bugs and issues into FC5
I never got any problems with Ubisoft games, appart from small bugs, nothing game braking.
Also If you have Win10, you will know that the spring update still create plenty issues for many people.
I will wait another 2 years till the system stabilise be for updating, or next year, if there will be possibility to completely disable forced OS updates.
Also suing Multimilion company for simple computer game, is just plain stupid !!
There more important things in life than computer games.
Have you tried reverting back to old KB4100403 ? If not you can try that after uninstalling the latest update from Windows 10 Control Panel.
Old KB4100403 : http://download.windowsupdate.com/d/...d7e28e9e5b.msu
Link source : How To Download Windows 10 Updates KB4338548, KB4100403, KB4103714, KB4093105 Offline [Cumulative Update And Delta Updates]