Joyce wrote: I am having problem understanding [ESET NOD32 anti-virus] and trying to figure out if there is anything I can do when I get a report NOT of any virus problem but with problems stating "error opening" I use Avast free AV, but ran a search for info re ESET AV. It appears it is a AV program based in India. The home [download site] has little info, but a search provided info that I hope will help or guide you to what you need to know. http://www.eset.com/us/download/documentation/dfamily/2/ ESET NOD32 Antivirus Windows Documentation Quick Start Guide | 751.2 kB http://download.eset.com/manuals/eset_eav_7_quickstartguide_enu.pdf User Guide | 2.9 MB http://download.eset.com/manuals/eset_eav_7_userguide_enu.pdf Search for answers to error opening files problem - run a search for ESET NOD32 anti-virus error opening files http://www.techsupportforum.com/forums/f112/nod32-error-opening-files-521225.html Print out http://kb.eset.com/esetkb/index?page=content&id=SOLN2769&pmv=print&impressions=false Blue "error opening" notifications in Computer scan log KB Solution ID: SOLN2155|Last Revised: October 29, 2013 Issue When performing a computer scan, you may occasionally see multiple blue “error opening” notifications in the Scan log. Generally, your ESET product is unable to scan files that are displayed as blue entries in the scan log due to the fact that: The file is password protected (for example, there are multiple user profiles on the computer) The file is a Windows system or program file The file is currently in use by other programs or background processes Windows uses and locks certain files from startup until shutdown. These files and any others that are running in memory can't be used by or tampered with by other programs, including ESET products or potential malware. ESET does scan these files during startup and again during shutdown to ensure that they are not corrupt. If a locked file contains a threat, it will appear in red text in the scan log–files displayed in blue are noted for informational purposes only and do not pose a threat to your system. Exclude a file or folder from Real-time scanning. http://kb.eset.com/esetkb/index?page=content&id=SOLN2769 Issue File-level scanning of some email servers, backup software, gaming applications, etc. is causing abnormal system behavior Exclude specific applications or folders from Real-time file system protection and all scan activity (Startup scan, On-access scanning and Computer (On-demand) scanning) Are you a Mac user? http://kb.eset.com/esetkb/index?page=content&id=SOLN3258 Solution Open ESET Smart Security or ESET NOD32 Antivirus. Press the F5 key on your keyboard to access Advanced setup. Expand Computer Antivirus and antispyware Exclusions and then click Add. Download the User Guide [link above] for more. Hope this helps... to me it appears as a normal process which can be ignored. Dianna