|To clarify, are you saying that anytime that you click on a file within your drive you get the "this operation has been cancelled due to restrictions on effect on this computer". If so are they only .exe files, or is it any and all?|
if that is the case, my guess is that you have a malware in residence. I would suggest going into safe mode, downloading malwarebytes and running it. Make sure you run the full scan option. IF malwarebytes fails to run and you get the same message again.
to fix the part of the system that is associated with .exe files.
then try again.