VMware Tools

The vSphere Web Client contains useful filtering options. One of them is to create a filter based on the virtual machine compatibility. This makes it easy to find virtual machines that need an upgrade to the latest virtual hardware version. Just enable the filter (see image below) and select all compatibility modes except the latest one (in this example vmx-10). You will only see virtual machine levels in the filter based on the virtual machines in your environment.

You can shrink a disk from inside a virtual machine running Windows with a command line utility named VMwareToolboxCmd.exe. The disk must not be a pre-allocated disk but should grow dynamically. 

Shrinking a disk can also be done from the Control Panel VMware tools entry, but when that is not available you can also do this from the command line. The utility is located in the folder C:\Program Files\VMware\VMware Tools.