Hello,
I have an HP pavilion ze4400 laptop with Windows XP, home edition. I have installed AVAST anti virus. When I reboot the laptop the On-Access Scanner stops working. The AVAST icon on the tray indicates zero providers running. When I review the settings for the seven shields the sensitivity for all has been changed from “Normal” to “Custom” if I click on “Customize”, access is denied. It seems as if some one has gained control of my laptop. The problem has been going on for several months. Some times On-Access protection will work after many reboots. I have ran several ad-ware scans (Avast, AVG, Ewedo, Trend Micro House Call,2d-Aware SE and others) but the scans do not find any viruses. Most recently I turned off System Restore and ran several scans on safe mode and one scan on normal mode and once again, except for some cookies, no viruses were found. After the scans On-Access Scanner started working and I turned System restore back on but, a windows update rebooted my laptop and, the Scanner is now not working.
Any suggestions?