Custom Scan problems? with NIS2010

Dear All,

Can anyone help me? 

I made a scan of NIS2010 on a folder on my external HDD.  However, when NIS2010 scan a particular file (a photo jpeg file)…it “continue scanning that file”.  There are not error messages nor is the file malware infected.  NIS2010 just scan that particular file for a long time (about 6-7 mins).  It is really weird, I don’t understand why.

The Jpeg photo file is not large nor it is damaged and that particular folders has all my JPEG photos.  Other photos were scanned quickly.

I tried using MALWAREBYTE and Threatfire, no problems whosoever.

I am not too sure if this happened during FULL SCAN or Automatic Scan, I cannot check them.

Thank you for your help.