Yes, if you uninstall the software from a PC, you will retain the remaining period of that licence.
For example, if you purchased a licence on 1 January and then, on 30 June, you uninstall Avast from the PC in question, you will retain the licence for the period from 30 June – 1 January of the following year (the remaining 6 months of the licence).
To uninstall Avast from the Avast Business console:
In the console, go to Devices > Select the device you wish to uninstall > click on Action (top right of your screen) > Click on Delete and Uninstall.
