Having happily used Avast Free for 18 months after upgrading from AVG Free I decided to take advantage of the discounted cost of the full version of Avast Internet Security and paid my money. Now my PC is taking nearly 3 minutes instead of 40 seconds from logging on to arriving at my desktop. It's now worse than Vista ever was!
Initially when I got a blank screen I thought my graphics card had got a problem and I uninstalled and reinstalled it several times to no avail.
I've been to "Troubleshooting" and selected "Load Avast! services only after loading other system services" but this has made no difference.
There are many people complaining about this, not just me, so please has anyone arrived at a solution for this problem?