What is McVsShld.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the McVsShld.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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McVsShld.exe file information

Windows Task Manager with McVsShld
McVsShld.exe process in Windows Task Manager

The process known as McAfee VirusScan ActiveShield Resource or McAfee VirusScan Alerter belongs to software McAfee VirusScan by McAfee (

Description: McVsShld.exe is not essential for the Windows OS and causes relatively few problems. McVsShld.exe is located in a subfolder of "C:\Program Files (x86)"—in most cases C:\Program Files (x86)\\VSO\. Known file sizes on Windows 10/8/7/XP are 163,840 bytes (66% of all occurrences) or 370,608 bytes. 
McVsShld.exe is not a Windows core file. The program is not visible. The software starts upon Windows startup (see Registry key: MACHINE\Run). McVsShld.exe is able to record keyboard and mouse inputs, hide itself and monitor applications. Therefore the technical security rating is 40% dangerous; but you should also compare this rating with the user reviews.

Uninstalling this variant: There is a possibility to do the following:

Recommended: Identify McVsShld.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as McVsShld.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the McVsShld.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

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Rating chart

Summary: Average user rating of McVsShld.exe: based on 8 votes with 3 user comments. 6 users think McVsShld.exe is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. One user suspects danger.

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Best practices for resolving McVsShld issues

A clean and tidy computer is the key requirement for avoiding problems with McVsShld. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the McVsShld.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

McVsShld.exe [all]