I started a full scan on a laptop before I left for lunch, and WD was still
scanning when I returned after an hour or so.
WD was busy somewhere in C:\Program Files\Microsoft Encarta folder.
It was taking a lot of time scanning the MDST or MDDLX files some of
which are hundereds of MB in size. I stopped the scan, and have not
tried a full scan after the engine updates, but it appears as if that WD
is very slow when it comes scanning archives.
I have got a 60GB hard drive on the laptop, and according to Diskeeper
the Free Space on the drive is 80%.
A full scan with NAV takes about 30 minutes, and a full scan with ewido
takes about 25 minutes.