Setting the deafult Home Page for Internet Explorer 10 and above
If you have set the Home Page using a GPO in the "Internet Explorer Maintenance" section, it will no longer work once clients upgrade to IE10 or above.
This method will work....
From the USER section of the appropriate GPO, go to Preferences, Windows Settings, Registry
Right click on Registry and select New > Registry Item.
Fill in the box as per the illustration. The only part you need to alter is the Value Data at the bottom.
For more info, take a look at: http://blog.thesysadmins.co.uk/group-policy-internet-explorer-10-death-iem.html