This is simple tutorial on how to uninstall Vmware workstation in a clean way.
Step 1: If you have a running virtual machine. Right click on the instance of the machine on home screen and Power Off the machine.
Step 2: Once the machine is switched off (I was running redhat Linux as you can see in the screenshot) you can right click the instance from home-screen and click delete from disk which will clean the OS from VMware.
Now you can delete other VMs also in a similar manner.
Step 3: Now go to start>> control panel>> uninstall or change a program.
Find VMware Workstation in the list right click on it and click change. The uninstall wizard will open and you can click on Remove to begin the uninstall.
After a minute Vmware is uninstalled from your system.