How do I run an On-demand Computer scan? (4.x)

KB Solution ID: SOLN2159|Last Revised: March 25, 2015

New version has been released

A newer version of ESET Smart Security and ESET NOD32 Antivirus has been released. We highly recommend that you upgrade to the latest version:

  • How do I upgrade to the latest version?
  • Remember: ESET Smart Security and ESET NOD32 Antivirus home editions are not suitable for use with ESET server products (such as ESET Remote Administrator).


If you suspect that your computer is infected (slow or abnormal behavior), an On-demand computer scan should be performed to examine your computer for infiltrations. We recommend that an On-demand scan be run at least twice a month, or more frequently for high-risk computers, as part of routine security measures. Regular scanning can protect your computer against:

  • Threats which were already present on your computer before your ESET security solution was installed.
  • Dormant, potentially harmful files on your system which may have been undetectable by older virus definitions.
  • Infections which occurred while the real-time scanner was disabled (possible only if turned off by the user).

 To run an On-demand computer scan, follow the steps below:

Video tutorial

  1. Open ESET Smart Security or ESET NOD32 Antivirus. How do I open my ESET product?
  2. If you see Display: Standard mode in the lower left corner, toggle to Advanced mode by clicking Change... or by pressing CTRL + M on your keyboard.
  3. Click Computer scan Smart scan.

    Figure 1-1
    Click image to view larger in new window

  4. Upon completion, a summary window showing the number of scanned, infected, and cleaned objects will be displayed. Click OK to return to the main program window. To view detailed results of the On-demand scan log, continue to step 5.
  5. Click Tools Log files. Select On-demand computer scan from the Log drop-down menu.

    Figure 1-2
    Click image to view larger in new window

  6. Double-click the line representing the most recently completed scan (top line). A new On-demand computer scan window will appear, showing the scan log details.
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