I just noticed a Deepscan I've done took less than 6 minutes and skipped searching most of my files.
Scan time: 00: 05: 56
Files per second: 257
Skipped items: 408930
Password-protected items: 0
Over-compressed items: 0
Scanned archives: 1
Input-output errors: 0
Scanned boot sectors: 3
Scanned processes: 2625
Infected processes: 0
Scanned registry keys: 2716
Infected registry keys: 0
Scanned cookies: 0
Infected cookies: 0
Is there a setting that I've missed? What's going on?