Re: C&C: Generals / Zero Hour - Windows10 x64 Freezes every 10seconds
The engine used in Generals is very unoptimized, and freezing issues were a thing even since the game was first released. You can minimize the performance issues by installing GenTool.
As for RA2/YR, please follow the "Handling Red Alert 2 and Yuri’s Revenge on Windows 8 / 8.1 / 10" section in this guide: http://www.cncnz.com/features/technical-support-help-guides/installing-command-conquer-red-alert-2-yuris-revenge/
These are quite old games, so issues are always to be expected.