I’m running under xp, not sure how long 16.5.0.134 has been installed, as NAV is set to automatic updates. I’m also running more than one machine, so don’t tend to notice changes unless things really clog up. The problem is the whole system scan has started to take forever - it used to take about 5-6 hours, now takes 11. Nothing has changed on the computer that I can think of. When I look at active processes during the scan, CPU usage is low and ccSvcHst.exe stops taking any CPU time at all for stretches. Anyone any idea or having similar problems?