How to remove the iSecurity virus

Most antivirus programs identify iSecurity.cpl as malware—for instance Avast identifies it as Win32:Agent-WOT, and Microsoft identifies it as TrojanDownloader:Win32/Nonaco.G or Program:Win32/Winfixer.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the iSecurity.cpl malware

ISecurity.cpl file information

The process known as Windows Security Center Notification App appears to belong to software Microsoft Windows Operating System by Microsoft (

Description: ISecurity.cpl is not essential for Windows and will often cause problems. The iSecurity.cpl file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 6,144 bytes (57% of all occurrences), 5,632 bytes or 125,440 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include A8311E8F-E459-4D22-89B4-CB9DCF10A425. The program is not visible. The process is loaded during the Windows boot process (see Registry key: AppInit_DLLs, MACHINE\Run, ShellServiceObjectDelayLoad). The file is not a Windows system file. There is no information about the author of the file. It is an unknown file in the Windows folder. The file is able to change the behavior of, or monitor Internet Explorer. Therefore the technical security rating is 97% dangerous.

Recommended: Identify iSecurity.cpl related errors

If iSecurity.cpl is located in a subfolder of "C:\Program Files", the security rating is 90% dangerous. The file size is 138,240 bytes. The program has no visible window. It is able to record keyboard inputs. There is no detailed description of this service. The iSecurity.cpl file is not a Windows system file. iSecurity.cpl appears to be a compressed file.

Important: You should check the iSecurity.cpl 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.


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Best practices for resolving iSecurity issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active iSecurity process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the iSecurity.cpl on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. 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.

Other processes

iSecurity.cpl [all]