If you are
getting unwanted multiple boot screen then Follow these steps to remove multiple boot.
Note: For deleting operating systems from boot.ini file, keep in mind that you can’t delete that operating system which is selected by default there. Before making any changes make a copy of boot.ini file.
Right Click on My Computer
Select Properties
Select Advanced Tab
Select Settings In the Startup & Recovery Section
Select the operating system which you want and Click OK.
Further again press the setting and click on Edit.
It will open boot.ini File.
Now you can
delete that operating system which you don't want to be displayed.
Thats all.
Thats all.