How to remove the WINClock virus

Most antivirus programs identify WINClock.exe as malware—such as TrendMicro identifies it as TROJ_FLOOD.C, and Microsoft identifies it as Trojan:Win32/Zapchast.

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 WINClock.exe malware

WINClock.exe file information

The process known as Internet Relay Chat Client belongs to software mIRC by mIRC Co. (

Description: WINClock.exe is not essential for Windows and will often cause problems. WINClock.exe is located in a subfolder of C:\Windows\System32\drivers or sometimes in a subfolder of "C:\Program Files" or in the C:\Windows\System32\drivers folder. The file size on Windows 10/8/7/XP is 452,608 bytes. 
The process has no file description. The software starts when Windows starts (see Registry key: MACHINE\Run). It is not a Windows system file. The file is located in the Windows folder, but it is not a Windows core file. The program has no visible window. The process uses ports to connect to or from a LAN or the Internet. WINClock.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 69% dangerous.

Recommended: Identify WINClock.exe related errors

External information from Paul Collins:

Important: You should check the WINClock.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.


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Best practices for resolving WINClock issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active WINClock process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the WINClock.exe 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 cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

WINClock.exe [all]