I have Norton Internet Security installed. Long ago I configured it to perform a full scan of my PC every Friday night, starting around midnight. Then I noticed the Norton Security process keeps the PC extremely busy until around 11am on Saturday.
So I've been trying to re-schedule the full scan to start several hours earlier (using Settings --> Task Scheduling) - but it's still behaving the same and keeping the PC busy until around 11am on Saturday, as if I change nothing.
What am I doing wrong?