You can find CrashPlan   in the Applications  folder, or by searching in Spotlight. 
 

1. Applications  folder:
   1. On the bottom left of thr dock, select the Finder  icon. 
      
       
   2. In the Finder  window. Select the folder labeled Applications . Proceed to navigate to  CrashPlan in the list of applications.
      
       
   3. If you cannot locate it, simply search CrashPlan in the Search Box located at the top right of the window.
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2. Locating with Spotlight:
   1. Go to the top right of your task bar and select the Spotlight icon as indicated below.
       
   2. Simply type in CrashPlan in the search box.
       
   3. When  CrashPlan appears, press enter and the application will open.