Dual Boot options to Normal Boot, how to change back?

I was recently given an old laptop to do experiments on, more or less. Right now, it has a screen that offers two Operating System options Windows XP and Windows NT. How do I get rid of the second option?Dual Boot options to Normal Boot, how to change back?
There's nothing wrong with having two OS's on a single hard drive. All you really risk is drive space.



The boot.ini option shown will remove the line, but it won't remove the additional operating system. If that is going to be your ultimate goal, then you can quite easily delete that partition using the disk management tool in Computer Management.



Just be careful how you do it, as the older OS is usually loaded as the first OS to ensure you have all available OS's listed and working (oldest to newest is the recommended installation order) so know for certain which partition you are clearing.Dual Boot options to Normal Boot, how to change back?
Go to the boot.ini on the root of the C:\ (it will be hidden) and in the boot.ini file delete the line that contains the information for the OS you do not want.
You cant get rid of it permanently. There are people who stupidly place two Operating systems on one computer. If you have two operating systems, then you will basically have a half working hard drive.



You will need to reformat and use the partitioning method to delete those two partitions and create ONE hard drive so you can install ONE Operating system. If you want a clean operating system, I suggest you reformat.



If you dont mind the two operating systems, but hate the dual boot, then just follow this link:

http://www.daniweb.com/forums/thread3955
thats rather tricky...



a simple fix is:



right click My Computer

Properties

go to Advanced

go to startup and recovery options



choose default operating system,

uncheck time to display OS choices



restart and test to see if it worked :)



**BONUS INFO**



Microsoft Virtual PC is now 100% free, use this to test operation systems, it works with anything and runs inside your current OS... perfect for the curious types ((see link below))