How to remove the wiwow64 virus

Most antivirus programs identify wiwow64.exe as malware—such as Microsoft identifies it as Backdoor:Win32/Refpron.gen!C or Backdoor:Win32/Refpron.P, and Kaspersky identifies it as Trojan-Downloader.Win32.DlfBfkg.ld or Trojan-Downloader.Win32.DlfBfkg.hp.

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 wiwow64.exe malware

Wiwow64.exe file information

Windows Task Manager with wiwow64
Wiwow64.exe process in Windows Task Manager

The process known as Mp3 Decode or Color Space Converter Filte or Audio Decode

belongs to software Audio Decode or Mp3 Decode or MainConcept Color Space Converter Filte

by England Lt or MainConcept A ( or Japan AV Lt.

Description: Wiwow64.exe is not essential for Windows and will often cause problems. Wiwow64.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 134,656 bytes (33% of all occurrences), 184,320 bytes, 162,816 bytes, 133,120 bytes or 132,608 bytes. 
The program has no visible window. The wiwow64.exe file is located in the Windows folder, but it is not a Windows core file. Wiwow64.exe is not a Windows core file. The program listens for or sends data on open ports to a LAN or the Internet. Therefore the technical security rating is 67% dangerous.

Recommended: Identify wiwow64.exe related errors

Important: You should check the wiwow64.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 wiwow64 issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active wiwow64 process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the wiwow64.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 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

wiwow64.exe [all]