Advanced Boot
A) Press and tap the F8 key about every second until you see the screenshot below.
NOTE: If the Windows startup logo appears, you will need to repeat steps 1 and 3 again. If you dual boot, then you will need to select the OS you want to use the Advanced Boot Option for and then press F8.
Use the arrow keys to select an advanced option to start Windows 7 into and press Enter. (See screenshot above)
NOTE: See the table below for a description of each