I'm having a similar problem. with Norton Utilities v.15.0.0.124 on Windows 7.
Deep scan always turns up the following:
High Priority: Highlighted value is missing or invalid
HKEY_CURRENT_User\Software\Microsoft\MediaPlayer\Preferences\HME\Last St....
Folders7=C:\Users\Nxxx\desktop\photos\yearbkA-G
I've deleted the yearbkA-G contents and folder from my Photos library and still get the Deep Scan finding each scan even after selecting "repair"
How do I get rid of this?