Help with Modding my games in a new windows 10 { PLEASE }

The wonderful husband of mine @Mathsorcerer , spoiled me and replaced my old "Frankenputer" with a new Dell that runs on Windows 10. I am fighting the real battle in trying to get this new beast tamed and behaving correctly. Any advice on this HUGE upgrade from Windows 7 expertise, to Windows 10 would be helpful. I have already set up my profile, made my self admin, unhidden the program files, and the system is still fighting me on installing my mods.