The number one complaint about activators is malware risk. To make dgmsactivatorexe better in a security context, you must not trust the original source blindly. Here is how to sanitize it.
Some monitors have buggy DSC implementation. Instead of running a random .exe, disable DSC directly:
Why this is better: You are controlling the driver directly, not running a suspicious third-party exe.
Extract dgmsactivatorexe using 7-Zip. Often, the .exe is just a wrapper for .dll files and a .bat script. Running the .bat manually is always a better option because you can see exactly what commands are being executed.