How to Set Windows 7 as the Default OS on a Dual Boot PC

Preparation

1. Click on the "Start" Menu.
2. Go to "Control Panel."
3. Click "System and Security" Link.
4. Click "Administrative Tools."
5. Double Click on "System Configuration".
6. Choose "Boot" and Click on the "Set as Default" Button to Change Its Default.
7. This Option is Disabled in My PC, Because Windows 7 is Already Set as Default OS on My PC.
8. Now, Look at the "Timeout" Settings and Set This Number to 3.
9. Click "Apply" and "Ok" to Save the Changes.
10. Restart the PC for the Changes to Take Effect.
11. This Is How You Can Set Windows 7 as the Default OS on Dual Boot PC