Menu:  Tools -> Import and Export Settings
Command:  Tools.ImportandExport Settings
Versions:  2008,2010
Published:  7/16/2010
Code:  vstipEnv0023

In the final post dealing with the Import and Export Settings Wizard, we deal with the nuclear option-the "Reset all settings" option:

WARNING:  Use this at your own risk.  It WILL reset your settings and do things like reset your Toolbox thus getting rid of any custom tabs, code pieces, etc.. you have put in there.

Clicking Next will give you the option to save your current settings.  YOU SHOULD ABSOLUTELY DO THIS:

The next screen let's you choose from the list of default settings:

Choose your default settings of choice and click "Finish".  It will run for a few minutes and reset all your settings.  This is definitely something you would do as a last resort and, remember, you can always bring your old settings back by importing the previous settings.