booting problem

I've upgraded from Vista Premium Home to Windows 7, home and now I have to boot twice. The first boot I get a blank black monitor, I have to manually shot the computer and boot again and log into windows on the prompt: "start windows in standard mode". Also, I have McAfee virus protection, should I delete it?

Did you do a clean install or upgrade? If you downloaded did you burn at a slow speed 4X or less? Upgrades can cause problems. Burning to fast causes troubles too.
Joe

I've used the disc for 32bits that came in the box that I've purchased for $129. I found out that this problem is global with VAIO, Sony and Vista, they have no solution yet. I'm now able to use my PC if I boot twice each time I turn the unit on.