I run a full virus scan on my desktop once a week, normally on Wed morning. Last week it took about 2 hours to scan about 1.4 million "items". I do skip some files, such as .zip files.
This morning it took about 30 minutes to run about 236,000 files.
I did a reboot, as it requested because of patch Tuesday (I forgot it and didn't do it before I went to bed last night) before I ran the scan.
The only update it didn't do was an HP driver update. I'm still fussing with that. It's something about USB and keeps telling me to retry.
Not only did it only scan a fraction of what it did last week, but it closed itself! It's never done that before under any type of scan. I'm currently re-doing the scan. It's done almost 200,000 items so far.
Did the update change anything with the virus scan?