Very often these days we need to manually choose to run a program as the computer's "Administrator" (or "Admin" for short). What this is for is so that the program is able to perform certain actions that it normally cannot do when not being run as the Administrator. One example (of many) is to perhaps start and / or stop a Windows Service. There are 2 ways do do this, one is a temporary "one time use way", and the other is the permanent way.
The "temporary" way is meant to be used if you only really need to run the program as Admin one time, or just every so often.
This is simple:
The "permanent" choice is meant for a program that really needs to be run as Admin every time it's used. in this case you'll want to set a "flag" to let Windows know to do so.
Right-click the program so the context menu pops up
Click on "Properties" at the very bottom of the menu
Click the "Compatibility" tab at the top of the window
Near the bottom you'll see an option to "Run this program as an administrator", check it
Click the "apply" button, then the "OK" button
Note: Use this ability wisely, there's a reason that you need to take these extra steps and that's because it's designed this way to protect your computer from Malware and viruses by limiting the abilities of programs to do things that could damage it.