Not being able to uninstall MInecraft launcher(windows version) or install it error 2318

Hi I have a problem that I can't install, nor uninstall the launcher for Minecraft ( widows edition i couldn't find it in the drop down menu)

Upon Doing so I get the error massage with the error code of 2318 I tried finding a solution online but couldn't find any thing.
also when trying to launch the launcher I get this massage.
 

Best regards 

Big Guy.