DRM quite often requires uninstallation of any other software it sees on your system that it even remotely thinks might be used to bypass the DRM. This includes things like certain virtual drive software or burning software. It also includes innocuous things like "process explorer". Many people do not use these things and thus come and say that DRM hasn't caused them any problems. But others do use this stuff for legit reasons and the game will say something cryptic about a security violation detected and won't run until you remove the software it has detected.
It is a very poor position to put the legit gamers in and is indeed caused by the DRM blacklisting certain software. If you are unaffected be very happy. If you are affected...well...good luck.
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