Hi:
Today for some reason when running C-Cleaner a box popped up, requesting that i close Firefox and Chrome browsers so the cache files would be cleaned. But the browsers were closed.
This error has never occurred before. Tried to reboot ,but had to force a warm-boot.
If it happens again open the taskmanager and check that there are still not instances of the browser running... it sometimes happens.
Welcome to the forum
check the second tab "processes" not the first tab which only shows (for the most part) programs with an active GUI.