there is a way to reset your photoshop settings to the default or original settings.
1) close your photoshop program if its open
2) Get ready and position your fingers over the 3 keys: Ctrl+Alt+Shift (haha..)
3) Launch your photoshop and quickly press and hold down the 3 keys!
4) As it is loading, you will see a small window asking if you would like to "delete the Photoshop settings file", Click yes
5) your settings will be reset
hope this works for u