As soon as I click play on the new launcher it crashes, in the native launcher notepad it says:

Set run directory to C:\Program Files (x86)\Minecraft
Native Launcher Version: 1234
Operating System: Windows 10 Home
Application Hash: 7dbb83a4ffb116a3c37230ec727e30298990c365
Application Data directory: C:\Users\Reece\AppData\Roaming/.minecraft
Executable Path: MinecraftLauncher.exe
App Directory dir: C:\Program Files (x86)\Minecraft
Start dir: C:/Users/Reece/AppData/Roaming/.minecraft
Launcher dir: C:/Program Files (x86)/Minecraft/game
TmpDir dir: C:/Program Files (x86)/Minecraft/tmp
(Optional) Java Launcher hash:
Java Version: 1.8.0_25
x64: 1
LauncherConfiguration from: http://launchermeta.mojang.com/mc/launcher.json
Downloaded config
Native launcher is current
Native launcher is current
Found name of process 2684: \Device\HarddiskVolume2\Windows\explorer.exe
Found name of process 4004: \Device\HarddiskVolume2\Windows\System32\userinit.exe
Detected previous run with new launcher, format of C:/Users/Reece/AppData/Roaming/.minecraft/launcher_profiles.json is 2
Using new launcher as self upgrade has been detected.
Launcher library is up to date with hash c023f36c3f0d1929f4dab6ad112ebd097cb4c44c
Check to see if we can run the launcher
Native launcher is current
Starting launcher.dll with C:\Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25\bin\javaw.exe
Found SetDllDirectoryW in kernel32.dll!
Added C:\Program Files (x86)\Minecraft\game to DLL search path
Running launcher!

Private cause I don't know if any information in there should not be shared with public.