Can't change IE start page

Some computer manufacturers and suppliers of internet access set IE to their home page and lock this setting via the registry. The locking is done using registry settings as per the following:

Home Page Setting Changes Unexpectedly, or You Cannot Change Your Home Page Setting (Q320159)

http://support.microsoft.com/default.aspx?scid=kb;EN-US;q320159

Specific registry settings affected are (make sure all are set to zero):

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Control Panel] - DWORD "HomePage"=dword:00000001 (grays out the whole section)

 

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer] - DWORD "NoSetHomePage"=dword:00000001

 

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions] - DWORD "NoSetHomePage"=dword:00000001