You will need to change a few things in your .vmx file for your virtual machine. In Windows Vista and Windows 7 the default location of your virtual machine is:

C:\Users\USER\Documents\Virtual Machines\VIRTUALMACHINENAME.vmx

Step #1

Open up the .vmx file in notepad and add :

bios.bootDelay = “5000″
this adds a 5000 ms (5 seconds) delay at boot time
save the .vmx file

or add:

Step #2 (Optional)

To force VM to enter the BIOS setup at next boot change the following:

bios.forceSetupOnce = “TRUE”

Escape will get you into the Boot Order and F2 will get you into the BIOS menu.