[MCL-3427] Launching new native launcher giver error code 5

I loaded the new native launcher without a problem, but when I launch it I get: "Problem copying the file with the following error code: 5"

nativelog.txt attached.

Native Launcher Version: 34
Operating System: Windows 7 SP1
Application Hash: 175f2b59d63d17f580f664c195ca8bb82666d0eb
Java Version: 
x64: 1
Starting download of: https://launchermeta.mojang.com/mc/launcher.json
Created pFile
Content length is 00A69780
Got 200 from server
Download successful
Native launcher outdated!
Hash should be b06079c75cb616544a6dbf83108db9a3265e1242
Starting download of: http://launcher.mojang.com/mc/launcher/win/b06079c75cb616544a6dbf83108db9a3265e1242/MinecraftLauncher.exe
Created pFile
Content length is 024A1638
Got 200 from server
Download successful
Started application "tools\NativeUpdater.exe" "MinecraftLauncher.exe" "tmpLauncher.tmp"