After a ton of try outs, this is the situation (and yes, I managed to fix it) Ideally Samsung's Windows 8 Update SW would still be working, but the server is dead (this provided upgraded drivers for this model (and many others) that would work with Windows 10). So we're stuck with the Windows 7 drivers... Installing the Easy Settings is blocked in Windows 10. The fix is to follow this guide https://www.youtube.com/watch?v=CI7hwFZ5ae8&ab_channel=SOiSK After the reboot^, rename the Easy Settings setup.exe to setup2.exe, then run it. It will install. Reboot. Very everything works as needed (the easy settings app will crash randomly, but it does run long enough to check settings if you want to use it, but most importantly, all the Function keys work as original. Restore the registry setting, and reenable User Account Control (unless you keep it off, which is a bad idea), reboot. Everything will still work after. If you're having trouble still with an messages, disable Smart Screening in Defender as well (in Windows 10 2004 it's under Reputation Based protection). This worked for me, and even survived a Windows upgrade from 1909 to 2004 build. EDIT: another fix is to use this utility https://www.fluxbytes.com/software-releases/fileunsigner-v1-0/ and use the /f option with it to remove the digital signature that triggers Windows' ridiculous protections. After you run it on the file, it should work fine. I just tried to run Easy settings after setting all protections back up again and it blocked it again, so I used this and it's running perfectly.
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