VMware vCenter 6 installation is a bit different than vCenter 5.x, and the below post show the installation steps of VMware vCenter 6 basic install.
1. Make sure you have minimum requirements and the OS you are using is on the compatibility list of vCenter 6.0. The below table demonstrate the minimum hardware requirements for vCenter 6.0.
2. Make sure the user to run vCenter Server service under has the log on as a service rights
3. Run the vCenter installer executable
4. Hit Install
5. Hit next
6. Accept license agreement and hit next
7. Choose your deployment type and hit Next.
8. Choose System Network Name and hit next
9. Provide the Single Sign-On Configuration & make sure your password meet the password complexity requirements ad demonstrated in the below screenshots
10. Choose the service account to run the vCenter Service under
11. Choose your vCenter DB Configuration
12. Confirm the network ports to use
13. Confirm the installation destination folder
15. Hit launch the vsphere web client to start using it and hit finish the installation
Done ! So your Vcenter Administration Kit is installed.