system
20
I’ve had a similar problem since Avast 7, though it’s probably worse since the release of Avast 8. There’s frequently a long period of black screen at start up before the desktop appears, it’s never not started but the black screen sometimes lingers for long enough to give me a scare. The problem isn’t sufficiently significant for me to ditch Avast, which I consider to be an excellent low-resource AV (once the computer is up and running!), but the slow start up with the black screen is an annoyance.