How to remove the winis virus

Most antivirus programs identify winis.exe as malware—for example Microsoft identifies it as Worm:Win32/Pizbot.B, and Symantec identifies it as W32.IRCBot.Gen.

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 winis.exe malware

Winis.exe file information

The process appears to belong to software Project1 by unknown.

Description: Winis.exe is not essential for Windows and will often cause problems. Winis.exe is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 1,183,744 bytes. 
There is no description of the program. The application starts upon Windows startup (see Registry key: MACHINE\RunServices, MACHINE\Run). The file is not a Windows core file. The winis.exe file is located in the Windows folder, but it is not a Windows core file. The program is not visible. The application uses ports to connect to or from a LAN or the Internet. Winis.exe is able to record keyboard and mouse inputs, hide itself and manipulate other programs. Therefore the technical security rating is 86% dangerous.

Recommended: Identify winis.exe related errors

Important: You should check the winis.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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One user thinks winis.exe is essential for Windows or an installed application.

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Best practices for resolving winis issues

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

winis.exe [all]