Edit Boot Menu in Window 7

Users that have Multiple Operating System may familiar with this one...

Here are the steps that guide you choose the default Operating system and waiting time..

1) Log into Window 7.. Right click My Computer and choose properties. 

2) At the left bar, click Advance System Settings.

3) Choose Advance Tab. Under the Startup and Recovery, click settings.

4) Now you should get this appear, 

5) Choose your default Operating System and waiting time, then click OK!

 Enjoy..