Can I remove the license from my machine, to install on a newer machine?
The XC compiler license is tied to the MAC address of the machine, there is no way for a user to move the license from one machine to another.
A Workstation license allows activation on up to three machines, for a single user.
However, if you have run out of activations and want to move a license from an older/retiring machine to a newer machine, you can either write to moc.pihcorcim|gnisnecilws#moc.pihcorcim|gnisnecilws, or open a ticket at http://www.microchip.com/support. Send us the MAC address of the machine that you are retiring.

