It should be in the start menu under all programs.

The executable(.exe) for it is in C:\Program Files\Movie Maker\DVDMaker.exe.

Double click on it to start.

 

In the little search box that comes up when you press start, type Windows DVD maker or just go into all programs>> then look at the list before all the folders.

If not there, go into your main hard drive which is typically C, it may be different on your system depending on the setup and go into Program Files and look for windows dvd maker and look for the exe in there.

 

Found it, thanks for your help.