If you want to set the user’s home page initially but then allow them to change it to whatever they want, on the Common tab in Group Policy Preferences, just make sure to check the box “Apply once and do not reapply” otherwise, any changes the user makes to their home page will be lost the next time they log in.
User Configuration > Preferences > Windows Settings > Registry Right-click Registry > New > Registry-Item Action: Update Hive: HKEY_CURRENT_USER Key Path: Software\Microsoft\Internet Explorer\Main Value name: Start Page Value type: REG_SZ Value data: http://www.paperstreetonline.com