What is winvnc4.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the winvnc4.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for winvnc4.exe related errors

Winvnc4.exe file information

Windows Task Manager with winvnc4
Winvnc4.exe process in Windows Task Manager

The process known as VNC Server Free Edition for Win32 or VNC Server for Win32 or VNC Server Enterprise Edition for Win32 or VNC® Server Enterprise Edition

belongs to software VNC Server Free Edition or VNC Server or VNC Server Enterprise Edition or VNC Enterprise Edition E or Rating_Workstation_Basic

by RealVNC (

Description: Winvnc4.exe is not essential for the Windows OS and causes relatively few problems. The winvnc4.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 439,248 bytes (28% of all occurrences), 438,272 bytes and 13 more variants. 
There is an icon for this program on the taskbar next to the clock. The file is not a Windows core file. The application listens for or sends data on open ports to a LAN or the Internet. The process can be uninstalled in the Control Panel. Winvnc4.exe is certified by a trustworthy company. Winvnc4.exe is able to record keyboard and mouse inputs, hide itself, connect to the Internet and monitor applications. Therefore the technical security rating is 30% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall VNC Free Edition or VNC, update it, or get help from the software vendor. Click on or to update it, click on or for support, or click on VNC Free Edition or VNC in Windows Control Panel (Software or Programs category) to uninstall it.

Recommended: Identify winvnc4.exe related errors

If winvnc4.exe is located in a subfolder of the user's profile folder, the security rating is 60% dangerous. The file size is 438,272 bytes. The program is not visible. The file is not a Windows core file. The software uses ports to connect to or from a LAN or the Internet. Winvnc4.exe is able to record keyboard and mouse inputs and hide itself.

Important: Some malware camouflages itself as winvnc4.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the winvnc4.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

vnc server is a remote acces program. Server is the host. Viewer has remtoe acces to you PC. Access can be protected with a password.
VNC Server
  Lunex   (further information)
If you see this file on your system, and YOU didn't install it, (You'd know.), You are in TROUBLE! Someone who had access to your system likely set it up to allow them FULL ACCESS to your computer, even the ability to watch you work without your knowledge! Serious potential for misuse!!!
I don't find it dangerous. Very useful remote desktop program
  Acillatem   (further information)
Like PD said, this is dangerous if it shouldn't be on your computer. Otherwise it's a very useful tool. I guess it might come under 'advanced use' for this reason.
remote control
  turista   (further information)
Real VNC server Very useful program. VS icon in taskbar turns black if user if connected
  Craig Sweeney   (further information)
If you didnt install it, get rid of it NOW
This file is Fantastic ! But if you don´t know to install this Programm delete it
vnc is hacked and some virus use it to install msconfig2 on your system... only use vnc inside your home network or on vpn/hamachi networks... just be sure your firewall/router blocks incomming ports from ip adresses from the internet... vpn/hamachi vnc control still works because data is transported trough a tunnel...
  Davy Bert  
Depends. Teacher use it help students. Parents used it find out what their children are doing. Of course there are people that abuse it.

Rating chart

Summary: Average user rating of winvnc4.exe: based on 19 votes with 11 user comments. 10 users think winvnc4.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 5 users think it's neither essential nor dangerous. 3 users think winvnc4.exe is dangerous and recommend removing it.

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Best practices for resolving winvnc4 issues

A clean and tidy computer is the key requirement for avoiding problems with winvnc4. 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.

To help you analyze the winvnc4.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

winvnc4.exe [all]