How do I fix the Mojang Native Launcher Updater?

Whenever I attempt to open Minecraft, I get the following error message: "Problem copying the file with the following error code: 2". Also, the name of the popup window is "Mojang native launcher updater". I can temporarily solve this problem by turning off my WiFi, opening Minecraft, and quickly turning my WiFi back on, but the next time I reopen Minecraft, the same thing happens all over again. When I searched for help online, I could only find it for error code 5. I have not been able to find a solution to this problem. I am running Minecraft on Windows 10, the launcher is version 1.6.11, and the version of Minecraft is 1.8.9. Also, I have installed (but am not using) forge.

Right click, run as administrator. Fixed it for me, and further launches did not require admin rights.