How do I know if I'm working on a Virtual Machine or not?

Solution 1:

If it's Windows, just have a look at the hardware screens. It'll have a billion and five VMWare-branded virtual devices.

Solution 2:

In the CMD window type:

SYSTEMINFO

You will find a line with the following text (or similar):

System Manufacturer:       VMware, Inc.
System Model:              VMware Virtual Platform

Solution 3:

If it's handled by VMware, it isn't too difficult at the present moment. This could change in the future.

# dmidecode -s system-manufacturer
VMware, Inc.