Edit Bootloader Menu

I have installed Grub Customizer but not from the software center, Just I wanted to edit my Burg Menu because its have a lot of options Netrunner, Netrunner Recovery mode, Windows Recovery Environment, Windows 8 , Windows 7 Recovery ( factory reset ) , and i don’t want to have an entry like that (means Windows 7 recovery) to appear on my loader, so this tool should edit my loader ,
if I deleted the following:
1- Netrunner GNU/Linux, with linux 3.8.0-23-generic (recovery mode)
2- Windows Recovery Enviroment (loader) (on /dev/sda1)
3- Windows 7 (loader) (on /dev/sda2)

1- will it affect on Netrunner or Windows 8 ?
2- I have a button on my laptop which allows me to enter the factory reset by pressing on it, will it be disabled if i deleted the previous entries ?

Note: My machine is dual boot Netrunner and Windows 8