How to remove the winsos virus

Most antivirus programs identify winsos.exe as malware—for instance Kaspersky identifies it as Trojan-Downloader.Win32.Small.gye, and Microsoft identifies it as Trojan:Win32/AgentBypass.gen!K.

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 winsos.exe malware

Winsos.exe file information

The process known as WINSOS belongs to software unknown by WINSOS.

Description: Winsos.exe is not essential for Windows and will often cause problems. Winsos.exe is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 28,929 bytes. 
The program has a visible window. There is no file information. The program starts upon Windows startup (see Registry key: MACHINE\Run, Run). The winsos.exe file is not a Windows core file. winsos.exe appears to be a compressed file. Therefore the technical security rating is 36% dangerous.

Recommended: Identify winsos.exe related errors

If winsos.exe is located in a subfolder of "C:\Program Files", the security rating is 44% dangerous. The file size is 2,437,575 bytes. You can uninstall this program in the Control Panel. There is no file information. The program is not visible. The software is loaded during the Windows boot process (see Registry key: MACHINE\Run, Run). Winsos.exe is not a Windows core file. Winsos.exe is able to connect to the Internet and record keyboard and mouse inputs.

Uninstalling this variant: In case of problems with winsos.exe, you can uninstall the program using the Control Panel ⇒ Uninstall a ProgramWINSOS.

Important: You should check the winsos.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 winsos issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active winsos process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the winsos.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

winsos.exe [all]