On several Windows 10 machines, I have been seeing messages appearing in its Action Centre pane with the heading Disable apps to help improve performance. It appeared again recently so I decided to look further into the matter.
What I found was that the solution first involves opening up Control Panel and that takes a little finding in Windows 10. You could use Cortana to get to it or right clicking on the Start Menu and left clicking on the Control Panel menu. Using the Windows key + X will produce the same menu and choosing the same entry will have the same effect.
Once Control Panel is open, it makes life a little easier if you change to the Large icons view using the drop-down menu under the Search Control Panel box on the right hand side. Then, what you need to do is click on the Security and Maintenance icon.
Once in that Security and Maintenance section, you are presented with two subheadings, one for Security and one for Maintenance. So long as you have not dismissed the message in the action centre, you will see a corresponding entry under the Maintenance section. At the bottom of that entry, there will be a link that turns off these messages permanently and clicking on this will have the desired effect.