In-Place upgrade: Mock WIN7-Setup that SP1 is installed with slipstrea

Hello,

I want to in-place upgrade from a Vista with slipstreamed SP1 to Win7. I installed about a hundred apps and it runs stable, so I do not want to reinstall them on a fresh Win7. It would cost me so much time to set all the options and settings of the apps again. I’m not planning to vlite Win7 again because of this problem, so I would be happy with a plain non-vlite Win7 installation. I know many oppose in-place upgrades because they think it would not be stable, but at least I want to give it a try (and keep a disk image of a working Vista for the case)!

The Windows 7 setup tells me, that my Vista can not be upgraded to Win7. My guessing is that it does not find the SP1, which is necessary for the upgrade. I did not find it in "Installed software"-menu of Vista either.

How can I mock the Win7-Setup that SP1 is installed with slipstreamed Vista?

The forum search did not return with something useful.

Regards,

Michael

Edit: SP1 is necessary for a in-place upgrade to Win7.

Edited November 10, 200916 yr by Raysy