you need
  • drives Windows XP and Windows Vista (Seven).
Guide
1
algorithm of operations will depend on what operating system you put first.
2
first consider the case when you do not have any operating system.We start with Windows XP.Just notice the obvious disadvantage of this method, despite its simplicity.Setup of Windows XP does not provide for the complex manipulation of the hard drive.
3
If you need to add a section on the disk, do so before installing Windows XP.Now insert the installation CD and start the program.Do everything as usual: Select the desired partition and format it in a specific file system.
4
Run Setup Windows 7. There is also no need to split hairs.Do not format the partition on which you installed Windows XP.Wait for the installation process.
5
Open "Advanced System Settings", located in the properties of the computer.Find the menu "Startup and Recovery" and open its settings.Activate the option "Display list of operating systems at boot time."
6
If you can not split your hard disk before installing Windows XP, or Windows Seven OS is already installed, then you will approach the second method.
7
Run the Setup program in Windows XP.Choose any partition other than the one on which is installed Windows Seven.Wait for the installation process.After rebooting, you will not see a window for selecting the system.Activate its method described in the fifth step, not possible.
8
Insert the Windows 7 and run the installer.The box containing the "Install" button, select "System Restore."In the next menu go to "Command Prompt."Enter in the window E: /boot/Bootsect.exe/NT60 All, where the "E" - DVD-drive letter.Restart the computer.
9
You run the operating system Windows 7. Open a command prompt by pressing Win + R and typing in the window that appears cmd.Enter the following commands:
D: / windows / sustem32 / Bcdedit / create {ntldr} / d "The name of the second system (in Latin)"

D: / windows / sustem32 / Bsdedit / set {ntldr} device partition = C:

D: / windows / sustem32 / Bsdedit / set {ntldr} path / ntldr

D: / windows / sustem32 / Bcdedit / displayorder {ntldr} / addlast.