Please check your directory,
C:\Program Files (x86)\Quest Software\Toad for Oracle\
there are folder name "User Files" please make copy this folder as "User" in the same parent directory, and it will work
Please check your directory,
C:\Program Files (x86)\Quest Software\Toad for Oracle\
there are folder name "User Files" please make copy this folder as "User" in the same parent directory, and it will work