I have just used Avast 4.5 for the first time (replacing the slow and combersome Norton Anti-virus).
When I performed a quick scan by right clicking on my C drive I was amazed to find that it took over 2 1/2 hours to scan about 70,000 files (Norton took just over 1 hour-and I thought this was slow)
When I performed a quick scan by right clicking on my C drive
This is perhaps a misnomer, using the right click context menu uses ashquick.exe, but this scans every file even those considered minimal risk, some image files, mp3s, etc. (every file). This is more used to scan downloaded files (small quantities of files, not whole drives).
You would be better running the regular avast anti-virus scan. Right click the avast icon and select Start avast Anti-virus from here you can select HDD, Partition, Folder or File and you will be able to select not to scan archives, etc. in the settings.
Thanks for the advice, I knew I had to be doing something wrong. I ran a virus scan from the enhanced user interface. Over 100, 000 (more than the 80,000 I thought I had on my PC) files scanned in under an hour.
Now that I have more of an idea what I am doing, this is a vast improvement.