Launching

When i load my minecraft it just say Launching the game failed. Error Details Operation is Done.

I have tried restarting my pc i have tried to restart minecraft, create a new user but it dosent work

 

ERROR

Launching the game failed!

Unable to locate the Java runtime.
Error details: Operasjonen er utf�rt.
Filename on disk: 5tf55
Path: C:\Program Files (x86)\Minecraft Launcher\5tf55
Exists: Nonexistent