Vncserverui.exe file information
The process known as VNC® Server belongs to software VNC Server by RealVNC (www.realvnc.com).
Description: Vncserverui.exe is not essential for the Windows OS and causes relatively few problems. The vncserverui.exe file is located in a subfolder of "C:\Program Files (x86)" (generally C:\Program Files (x86)\RealVNC\VNC Server\).
Known file sizes on Windows 10/11/7 are 2,849,088 bytes (50% of all occurrences), 3,857,216 bytes or 3,856,704 bytes. 
The application can be uninstalled in the Control Panel. Vncserverui.exe is certified by a trustworthy company. There is no information about the author of the file. It is a Verisign signed file. Vncserverui.exe is not a Windows core file. The program listens for or sends data on open ports to a LAN or the Internet.
Vncserverui.exe is able to connect to the Internet, monitor applications and record keyboard and mouse inputs.
Therefore the technical security rating is 18% dangerous; but you should also compare this rating with the user reviews.
Uninstalling this variant:
If problems with
VNC Server occur, you can also contact www.realvnc.com
Customer Service or uninstall the program using the Control Panel ⇒
Uninstall a Program.
Recommended: Identify vncserverui.exe related errors
Important: Some malware camouflages itself as vncserverui.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the vncserverui.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.
Best practices for resolving vncserverui issues
A clean and tidy computer is the key requirement for avoiding problems with vncserverui. 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.
To help you analyze the vncserverui.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. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.
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Score
User Comments
Kwabena Agyapong
Summary: Average user rating of vncserverui.exe: based on 1 vote with 1 user comment. One user thinks vncserverui.exe is essential for Windows or an installed application. One user is not sure about it.