[MC-120591] minecraft is stuck and creates a nativelog when starting

Hello,
I've got minecraft on a computer downstairs, And now i got also a computer with minecraft upstairs. When i start minecraft downstairs it doesn't make a nativelog on the desktop. But when i start minecraft upstairs it creates a nativelog on the desktop. When i open the nativelog there is something writed:

Set run directory to C:\Program Files (x86)\Minecraft
Native Launcher Version: 1321
Operating System: Windows 10 Pro
Application Hash: d026a01a83aeaec4111e8c7430ad89b21f3a30f3
Application Data directory: C:\Users\Nathan\AppData\Roaming/.minecraft
Executable Path: MinecraftLauncher.exe
App Directory dir: C:\Program Files (x86)\Minecraft
Start dir: C:/Users/Nathan/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
Detected previous run with new launcher, format of C:/Users/Nathan/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 ec064f05257ba720c432bce019329ec56417a61f
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!
Launcher ended with 0

What does this means? I thought it might have to do with my second problem. That problem that i want to say now is only on my computer upstairs. Downstairs works my minecraft as normal. If I'm In a server or a single player world, minecraft is stuck. The same is with the windows 10 edition. When I touch F3+A minecraft is as normal. Is this a problem with my minecraft or my computer?
Thank you for your reaction. Sorry for maybe some faults in my English. I'm a Dutchman and still learning english. If you do not understand something, feel free to say so. I will try to explain again.
Yours sincerely,
Nathan