@Reactor, LineOf7, Andrea:
Can you please check these paths ( Andrea, I don't know what's the exact path in German windows, but I think you can find it ) :
C:\Program Files\Common Files\Wise Installation Wizard\
C:\Windows\Installers\
I think that the program asking to reinstall itself uses Windows Installer and that Windows keep it's install package even if you deleted / uninstalled it !
Please check the above paths and tell me if you have an installer for that program there... it's name won't be some normal name, but
something like WISblablalbla.MSI - you must start it to see what program it is.
I'm investigating further to see why this happened... Can you confirm that it's original installation is using "Windows Installer" ( .msi ) ?
Also, what happens if you let that program to install/reinstall ?
Can you please check these paths ( Andrea, I don't know what's the exact path in German windows, but I think you can find it ) :
C:\Program Files\Common Files\Wise Installation Wizard\
C:\Windows\Installers\
I think that the program asking to reinstall itself uses Windows Installer and that Windows keep it's install package even if you deleted / uninstalled it !
Please check the above paths and tell me if you have an installer for that program there... it's name won't be some normal name, but
something like WISblablalbla.MSI - you must start it to see what program it is.
I'm investigating further to see why this happened... Can you confirm that it's original installation is using "Windows Installer" ( .msi ) ?
Also, what happens if you let that program to install/reinstall ?