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How to disable or enable on-access scanning in McAfee Virus Scan

By default, the copy of Mcafee Virus Scan available comes configured to prevent Virus Scan services from being stopped. This is a safeguard against viruses stopping McAfee services and disabling Virus Scan. However, this also causes the ‘Disable On-Access Scan’ menu item to be grayed out when right-clicking on the ‘VShield’ icon in the system tray.
The solution to the problem

Follow the instructions to disable or enable on-access scanning in McAfee Virus Scan:

  1. 1

    Right-click the ‘VirusScan’ icon in the system tray, and then click ‘Enable’ or ‘Disable’.

  2. 2

    In the ‘Command Prompt, type either “Shstat.exe –disable” or “Shstat.exe –enable”.

  3. 3

    Click the ‘Stop’ or ‘Start’ button on the ‘VirusScan Console Toolbar’.


An antivirus program that scans and removes malicious files from your computer, McAfee also scans incoming and outgoing emails as well as warns you of files trying to change your system’s configuration. When installing new software on your computer, McAfee On-Access Scanning may block the software’s installation process. The scanning utility may also block the installation process from accessing your computer’s Internet connection. You can disable the scanning utility and restart it once you are done installing the new software. The entire procedure is applicable to McAfee AntiVirus Utilities.

5 Responses to “How to disable or enable on-access scanning in McAfee Virus Scan”
Violeta Landreneau Says:
April 23rd, 2013

How is McAfee Virus Scan and is it easy to install? I am iYogi’s subscriber for more than two years and I look forward to your service to fix different kind of technical needs. I often go through your website to look for solutions like this. Your DIY’s are simple and easy to follow and it gives exactly what is demanded. Keep providing the details in same manner. Thanks iYogi.

jukantokka Says:
May 28th, 2013

This solution is correct and to the point. Not like the other DIY’s that confuses the readers with so many unrelated points and steps. I could solve my problem so easily with the help of this solution. Thanks iYogi, I trust you people because I know only you can help, I am your subscriber from past one year and I know how efficiently you people takes care of the technical problem of your customers. Thanks again

BritKeeper Says:
February 11th, 2014

I am using McAfee internet security software on my Dell laptop. Whenever I used “McAfee On Access Scanner service” option to scan my laptop my laptop works very slow. It is consuming too much memory and affecting my work. Is it a virus or McAfee that slow down my laptop speed?

sukanya Says:
February 11th, 2014

Brit, I have also faced such issue with McAfee Total Protection on my Windows 8 lenovo laptop. I just follow the above step to disable it and did successfully.
If you need further help regarding enable or disable of on access scan of McAfee go to this link https://www.mcafeeasap.com/Sc/Help/PageLevelHelp/Help/en-US/index.html#GUID-4F469CF3-276E-4F6E-810B-D9829399D987.html

Britika Says:
February 11th, 2014

I wouldn’t recommend disable of McAfee Total Protection or McAfee Internet Security. Instead of that just update your McAfee software and also update your Operating System to get rid of this issue

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