If you want to disable My Site or My Links functionality, here are the steps to follow:
- Open Central Administration site
- Under Shared Services Administration click your Shared Services Provider (SSP) which is running your My Site functionality
- Under User Profiles and My Sites, click Personalization Services Permissions
- Here you can assign different permission set for different users and groups for Personalization functionality. For example
- To disable My Site functionality for all users click NT Authority\Authenticated Users group and uncheck Create personal site
- To disable My Links uncheck User personal features
- Click Save
- Repeat above steps to individually manage Personalization for different users and groups