There are a lot of annoying limitations in Windows XP Home Edition, that prevents me from switching the main account to a non-administrator, just user account. However, this page shows a way how to set an internal switch so that most included, but disabled functions are available.

1. Boot with Bart PE Windows disc or any other Windows 2000 or later OS that is not the XP Home you want to modify.
2. Start the registry editor and load the file %windir%\System 32\Config\SYSTEM.
3. Switch to the key HKLM\RemoteSys\ControlSet001\Control\ProductOptions and delete "Personal" from the String Product-Suite. You have to keep the empty string!
4. Reboot to your modified Windows XP Home Edition and open regedit.
5. Open the key HKLM\System\CurrentControlSet\Control\Lsa and set the DWORD entry forceguest to 0.
6. Reboot your Windows.

Now, what new features does your Windows XP "Prome" reveal?

• Explorer shows the tab "Security"
• EFS encryption is enabled
• runas has a working "savecred" switch
• many more...