Can't Change Homepage in IE

In Regedit, navigate to this key:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Control Panel
In the right-hand pane, right-click the "HomePage" value, then select Modify. Change it to: 00 00 00 00
Also change either or these to zero 0 instead of 1 if present:[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
If you don't have this key, browse to:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Mainand in the right hand pane, double click "Local Page" and set equal to "C:\WINDOWS\System\blank.htm" (no quotes) which will hopefully set your Home Page to blank and then allow you to subsequently modify it using Internet Options.Exit regedit and reboot.
When you reboot, you should be able to change the home page again.