The new default behaviour of the copy default-config startup-config command is to reset the device to its default config and also reinstall and recreate the installed TPVM (if installed) once the device is rebooted.
There will be instances where you would like to reset the device to its default state without automatically reinstalling the TPVM. To facilitate this activity, use the copy default-config startup-config remove-TPVM command. When executed, this command will not reinstall the TPVM on device reboot after copying the default configuration as the startup configuration.