|F8 is a function of Windows not the computer or BIOS. There is no reason why a Packard Bell should be any different than any other computer.|
Make sure you start tapping F8 as soon as anything appears on the screen. There is a very short window when F8 is available and tapping the key early enough is the only way of making sure you catch that window.
If you tap F8 too soon you will get a list of bootable devices. That is a BIOS function. If that happens, just select the hard disk where Windows is installed and boot from that and continue tapping F8 as Windows begins to load.