Strange Launch Behavior

I am a returning player, and have been back for little under a month. Though When I go to boot up the WoW.exe from Launcher, the Pc Thinks then stops with no result. Nothing in the task manager either. I then attempt starting Wow from launcher again and Again until now there is several Wow.exe open and contending.
I can then select one and close the remaining. Is this a my Pc is taking forever to load issue or launcher issue?