KAV installation fails with the following errors:
There is not enough space on the disk. : Script error. util.extractFiles@extract
There is not enough space on the disk.. : Script error. util.downloadFiles@downloadFileUsingPeerToPeer
The drive that is assigned to the temp path in environment variables doesn't have enough space to download/unpack the KAV installers on the machine.
Free up some space on the machine or change the temp path to a different directory in environment variables.