When you start the autorun of vSphere vCenter 4.0 update, you will notice a new button called Agent Pre-upgrade Check. In this post you, I will show you the wizard.
Choose the right credentials to connect the vCenter database:
Choose your scan type:
And wait. My hosts are ready to upgrade:
ICT-Freak.nl 
3 thoughts on “vSphere: Agent Pre-Upgrade Check Utility”