gerbil

@Hugo, your stack is the benign version I mentioned above.
The problem is indicated by

at net.minecraft.launcher.GameLauncher.getAssetObject(GameLauncher.java:323) ~[launcher.jar:?]
at net.minecraft.launcher.GameLauncher.launchGame(GameLauncher.java:245) ~[launcher.jar:?]

The benign version has

at net.minecraft.launcher.Launcher.cleanupOrphanedAssets(Launcher.java:254) ~[launcher.jar:1.6.61]
at net.minecraft.launcher.Launcher.performCleanups(Launcher.java:496) ~[launcher.jar:1.6.61]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:231) ~[launcher.jar:1.6.61]

One is attempting to access the file to get the assets and run the game. The other is speculatively attempting to clean up after the game has already exited. [All failures should really be being silently suppressed by Mojang during cleanup, but they don't do that]

Duplicate of MC-31115

You are right, this is not a duplicate of MCL-1905.
It is a duplicate of MCL-774

This message can be benign although disconcerting. Nothing bad happened despite these logs:
[11:55:01 INFO]: Looking for orphaned versions to clean up...
[11:55:01 FATAL]: Fatal error launching game. Report this to http://bugs.mojang.com please!
java.io.FileNotFoundException: File 'C:\Users*************\Desktop\MCSERVER\New folder\.minecraft\assets\indexes\legacy.json' does not exist
[13:04:18 INFO]: Game ended with no troubles detected (exit code 0)

Minecraft has to live within the windows permission system.

Can you see the difference between: C:\Users\eddie\ and C:\Users\MrEd ?

One is your windows user directory... and one is NOT.