Removing MySite functionality from PWA

1. First, in order to follow these steps you will need administrator access to the SharePoint Central Administration site for your SharePoint installation.
   
2. Go to the Central Administration Web Page
   
3. Click on the link for Shared Services Administration
   
4. If you have more than one SSP, select the one that is running the My Sites functionality for your PWA instance.
   
5. Under "User Profiles and My Sites" click Personalization Services Permissions
   
6. Select the group you want remove the My Site/Links functionality from.  In most cases this will simply be NTAuthority\Authenticated Users
   
7. In the next screen you will see a list of checkboxes,
   
   1. To disable MySites uncheck "Create Personal Site"
      
   2. To disable MyLinks uncheck "Use Personal Features"