My computer wont load . It says missing bootmgr press ctrl alt del to restart

1.Insert the Windows XP CD-ROM into the CD drive, and then restart the computer.
2.Click to select any options that are required to start the computer from the CD drive if you are prompted.
3.When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
4.Press 1 (One) to select windows XP and then hit enter.
5.When you are prompted, type the Administrator password. If the administrator password is blank, just press ENTER.
6.At the command prompt, Type Bootrec /RebuildBcd and then press ENTER.
7.If the Bootrec.exe tool runs successfully, it presents you with an installation path of a Windows directory. To add the entry to the BCD store, type yes. A confirmation message appears that indicates the entry was added successfully.
8.If the Bootrec.exe tool cannot locate any missing Windows installations, you must remove the BCD store, and then you must re-create it. To do this, type the following commands in the order in which they are presented. Press ENTER after each command.
Bcdedit /export C:\BCD_Backup

ren c:\boot\bcd bcd.old

Bootrec /rebuildbcd

1.Restart the computer