Test System: Win7 64-bit NOD32 Antivirus v6 was already existing on the system. Success: The v7 Antivirus install uninstalled v6 successfully, and accepted my existing NOD32 registration. Bug: The first scan progress bar showed "almost completed" for at least 5 hours while scanning about 650 gigs. The popup scanning window view showed 99% completed the entire time. Issue: The same first scan results showed me one "threat found", but I had no easy way of telling what or where it was while the scan continued to run for hours. The next day I found the filtering buried in the controls. The threat was a .part file - a partially downloaded file that I'm fairly sure NOD v6 stopped previously. The UI during the scan should have a way to immediately handle the issue (surprisingly, it did not put it into the quarantine either). I manually deleted it simply by running CCleaner real quick in an effort to hurry up the long NOD32 scan by removing a bunch of browser cache files. Issue: While this first scan was running, the system was markedly slower. It ran much longer than I expected. Issue: After a few days of use, seems like the system is busy a lot, the disk drives are busy doing something when nothing is going on. My email software is responding slower than it was under NOD v6 Investigating, I see EKRN.EXE being active a lot too. It just feels slower.
Edit: email troubles cropped up; posted second message later in this thread.