Restoring the Windows 7 Boot Sector

Windows 7 won't start after you install Windows XP or an earlier version of the Windows operating system in a dual-boot configuration. This occurs because Windows 7 uses a different startup method than Windows XP and earlier versions of Windows do.

You must restore the Windows 7 boot sector and allow dual boot by following these steps:

1. Click Start, click Accessories, right-click the command prompt, and then click Run As Administrator.
2. Restore the Windows 7 boot code by typing the following command at a command prompt: DriveLetter:\boot\Bootsect.exe -NT60 All, where DriveLetter is the actual letter of the drive on which Windows 7 is installed.
3. Allow booting of the earlier operating system by typing the following commands at a command prompt, where DriveLetter is the actual letter of the drive on which Windows 7 is installed:

   DriveLetter:\Windows\system32\Bcdedit -create {ntldr} -d "Description for earlier
       Windows version."
   DriveLetter:\Windows\system32\Bcdedit -set {ntldr} device partition=DriveLetter:
   DriveLetter:\Windows\system32\Bcdedit -set {ntldr} path \ntldr
   DriveLetter:\Windows\system32\Bcdedit -displayorder {ntldr} -addlast
   

4. Restart the computer.

Changing Disc Close on Eject Settings

In Windows 7, closing a disc session lets you use it in another computer or device. If you don't want Windows 7 to automatically close sessions, follow these steps:

1. Click Start and then click Computer.
2. Right-click the writable DVD drive, and then click Properties.
3. In the Properties dialog box, click the Recording tab, and then click Global Settings.
4. Clear the "Automatically close the current UDF session when" options and then click OK twice.