In 10, left click the Start button. From there you should see Recently added, Most used and your All Apps list (includes Apps and x86/x64 programs).
From there, you can scroll through the list or click on a letter to call up the quick action alphabetical header shortcut to go straight to the first letter of the program you want.
Right click on an entry to get a contextual menu of options...
If you have a different OS version, we would need to know which.
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