When I try to run Minecraft, I receive an error saying it is "Unable to start the Minecraft Runtime Environment"

Solution 1:

According to this Official Minecraft Forum thread on this error:

One solution is to:

Attempt to use the alternative launcher here, https://s3.amazonaws.com/Minecraft.Download/launcher/Minecraft.exe

-Quote: cestislife

Another is to:

Try to run the MinecraftLauncher.exe found at "C:\Program Files (x86)\Minecraft\" as Administrator.

-Quote: DVSProductions

The file you're looking for is either:

C:\Program Files (x86)\Minecraft\MinecraftLauncher.exe

or:

C:\Program Files\Minecraft\MinecraftLauncher.exe (On 32-bit versions of Windows; it's probably not since you're running Windows 10)

Find that file then right click on it and left click the option labeled 'Run as administrator'.