Upgrading Windows XP Home to Professional, Free Upgrade to Windows Xp Home to Professional

Want to upgrade your 'Windows XP Home' to 'Windows XP Professional' without spending a penny, then this trick is will fall in your interest. It is pretty simple to do since it requires some changes in registry & some files of 'Windows Xp Service Pack-2'.

It is not possible to upgrade without change in your windows file since no changes will be seen. So you do require a windows CD, here it is what you asked for:

• Copy root directory & i386 of your Windows installation disc to your harddisk.
• Extract Boot sector of Windows Installation disc.
• Change 2 Bytes in i386\Setupreg.hiv, as
• Open Regedit
• Goto:
  HKEY_LOCAL_MACHINE
• Now Goto:
  Menu: File -> Load Structure -> i386\Setupreg.hiv
• Assign a name to Imported structure, say 'Homekey'.
• Goto:
  HKEY_LOCAL_MACHINE\Homekey\ControlSet001\Services\setupdd
• Edit the binary key "Default".
  "01” to “00”
  “02” to “00”
• Highlight “Homekey” and select menu: File -> unload structure
• Burn your new XP Pro CD
• Install WindowsXP as usual. Your XP Home Key will work.

I hope this this trick might work for you, in case its not working please leave your query here.