Can't get rid of User Account Control

Just upgraded to Windows 10. The upgrade went smoothly, but there were a number of strange glitches. All of the registers in my Quicken account were changed. Many icons were missing from the taskbar. And when I hit Start and Programs, 3 columns of programs come up, but that listing does not include any more programs. I cannot figure out how to access them. Most importantly, and the reason for this post, is that I am trying to get rid of the User Account Control or change the way it works. Every time I try to make any changes, a UAC box comes up asking me if I want to allow changes to be made. However, the only choice given is "NO." There is no "Yes." I have tried to modify the appropriate key in the registry (EnableLUA), but I am told that I am not allowed to make changes. If I try to delete this key that controls the UAC, I am told that changes cannot be made. I tried the suggestion posted here to call up the Windows Power Shell, but when the data comes up, I don't know what I'm supposed to do with it. I am not able to get into the screen that allows me to move the lever that indicates when I want to be notified if a program is changing. I have spent a long time looking at articles on the Internet, but they all make the same suggestions that do not work for me. I very much appreciate any help.