HOW TO INSTALL XP AFTER WINDOWS 7 INSTALLED

1. Open the Computer Management (Right Click on My Computer and click on Manage)
   
2. Select Disk Management (From opened box left pane select Disk Management);
   
3. Right-click on the partition to "shrink" to install XP, and select "Shrink Volume" from the context menu;
   
4. Enter the number of MB to be used to install Windows XP in the "Enter the amount of space to shrink in MB (recommended 4.000MB) and click Shrink;
   
5. Restart your PC;
   
6. Insert the installation of Windows XP in the drive and the computer to boot from it;
   
7. Follow the wizard and set the destination space partitioned;
   
8. Insert the installation USB Stick of Windows 7 (or a disk in the DVD ROM ) and let the computer boot from it;
   
9. Select "System Recovery" followed by "Startup Repair";
   
10. Reboot the PC and log on to Windows 7;
    
11. Install and start VistaBootPro;
    
12. Ignore the request for the creation of backup files;
    
13. Go to the menu "Diagnostics -> Run Diagnostics";
    
14. The emergence of new entries in the operating systems that will present in VistaBootPro, click the Apply updates;
    
15. Restart your PC.

Mission accomplished! It been tough, but now you can finally enjoy a perfect dual boot between Seven and the dear old XP.