AOS ISTA instal after running standalone

[it3_magic]

Anyone succesfully installed AOS original bmw ISTA after having standalone verions installed on their computers without reinstalling widnows first?

If so what did you do, i tried cleaning registry, deleting stnadalone etc but get error :

Failed to start ISTA.

Please make sure your ISTA configuration is valid.
In doubt reset any non standard ISTA configuration and reinstall ISTA.