Convert Windows XP Home to Windows XP Professional
To convert and upgrade Windows XP Home to Windows XP Professional, follow procedure below.
1. Open Registry Editor (regedit).
2. Navigate to HKEY_LOCAL_MACHINE/SYSTEM/ControlSet00X/Control/ProductOptions, where ControlSet00X is the one with the highest number.
3. Delete the ProductSuite registry key.
4. Then, create a new DWORD value and named it as Brand.
5. Set the “Brand” value data as 0.
6. Reboot the system.
7. On boot up after the BIOS screen, press F8 to display Windows XP Startup Menu.
8. Choose Last Known Good Configuration (LNG) and hit Enter.
Windows XP will start up as usual. After logging into the desktop, check the system properties to verify that it’s now Windows XP Professional.
To get RDP to work from here.
Then download and install DevCon, a command-line utility functions as an alternative to Device Manager. devcon.exe is a self-extractor executable. Execute devcon.exe and choose a folder to unpack the content. devcon.exe will create two folders inside the selected path – i386 and ia64.
Download: http://download.microsoft.com/download/1/1/f/11f7dd10-272d-4cd2-896f-9ce67f3e0240/devcon.exe
Open a command prompt window (Cmd), and the change directory into the i386 folder extracted by DevCon.
Then run the following command to reinstall rdpdr driver: devcon.exe -r install %windir%\inf\machine.inf root\rdpdr
Restart the computer after running the command.
Download and run the enable_tsxp.bat batch script which will create a .reg file to merge the required Terminal Services values to registry and bootlog
Reboot after patching the registry.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Change the value data for “AutoAdminLogin” from “1″ to “0″.