I had a dualboot with Win7 and linux.
Because I won't use linux anymore I would see that i can deleted the bootmenu so my computer boots directly into windows without menu.
The menu presents the entries for each OS, and you can select an OS to boot by using the up/down arrows on your keyboard followed by enter. As for getting rid of the boot menu, you can either have it skipped or if you don't plan on keeping Linux you can delete the entry for it - with only 1 entry the boot menu is usually bypassed and so you would not see it on most computers which have a single operating system. Again, refer to the excellent instructions in post 2 to clean up your boot menu for a single OS.