Command & Conquer Generals

@Industria65

This problem is caused by Microsoft terminating support for SafeDisc/Securom, which the game uses for its DRM. The message is incorrect, too; the system 'blocks access' no matter what administrator privileges you might have, since the system which the game is requesting is simply never loaded at all.

More info on this can be found here:

http://www.howtogeek.com/230773/how-to-play-pc-games-that-require-safedisc-or-securom-drm-on-windows-10-8.1-8-7-and-vista/

The issue has been discussed in detail in this thread here on the forum:

http://answers.ea.com/t5/C-C-The-Ultimate-Collection/Command-and-Conquer-Generals-Zero-Hour-Windows-10/td-p/4701341

The posts by the user PADYWAN1 have some really good research and solutions.