David has Windows 7 and he's thinking about upgrading to Windows 8. Leo says to wait. Windows 9 is coming out this spring and the rumor is that Microsoft may just give it away. Windows 8 is the Vista of this decade and Leo says it's worth it to stay with Windows 7 and wait for Win 9. You can see a preview of it at WinSuperSite.com. Leo also says that modern computers use UEFI instead of BIOS for a more secure boot up. You can turn on Secure boot, but UEFI does the heavy lifting to prevent someone from modifying your bootup. So Leo wouldn't worry about it.