How to remove the winsys32 virus

Most antivirus programs identify winsys32.exe as malware—for instance Kaspersky identifies it as Backdoor.Win32.Rbot.cof or Trojan-Dropper.Win32.Agent.biqm, and Symantec identifies it as W32.Spybot.Worm or Trojan Horse.

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 winsys32.exe malware

Winsys32.exe file information

Windows Task Manager with winsys32
Winsys32.exe process in Windows Task Manager

The process known as RZ7tLty appears to belong to software TatkVCS14h by GZ93YnT8K.

Description: Winsys32.exe is not essential for Windows and will often cause problems. The file winsys32.exe is located in the C:\Windows\System32 folder or sometimes in a subfolder of C:\Windows. Known file sizes on Windows 8/7/XP are 66,048 bytes (60% of all occurrences), 1,341,518 bytes or 71,680 bytes. 
There is no file information. The program has no visible window. The winsys32.exe file is located in the Windows folder, but it is not a Windows core file. The winsys32.exe file is not a Windows core file. The application starts upon Windows startup (see Registry key: MACHINE\Run, DEFAULT\Run, Run, MACHINE\RunServices). Winsys32.exe is able to record keyboard and mouse inputs, hide itself and monitor applications. Therefore the technical security rating is 88% dangerous, however you should also read the user reviews.

Recommended: Identify winsys32.exe related errors

External information from Paul Collins:
There are different files with the same name:

Important: You should check the winsys32.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

It is a trojan used in R.A.T.s etc.
It gives me a bluescreen.

3 users don't grade winsys32.exe ("not sure about it").

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Best practices for resolving winsys32 issues

A clean and tidy computer is the key requirement for avoiding problems with winsys32. 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 doing a repair of your installation, or in the case of Windows 8, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the winsys32.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

winsys32.exe [all]