What is vmnat.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 vmnat.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.

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Vmnat.exe file information

Windows Task Manager with vmnat
Vmnat.exe process in Windows Task Manager

The process known as VMware NAT Service belongs to software VMware Workstation or VMware Server or VMware Player by VMware (

Description: Vmnat.exe is not essential for the Windows OS and causes relatively few problems. Vmnat.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 135,168 bytes (47% of all occurrences), 150,064 bytes and 16 more variants. 
The program is not visible. Vmnat.exe is not a Windows system file. The application can be uninstalled in the Control Panel. Therefore the technical security rating is 31% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with vmnat.exe come up, you may want to do the following:
  • visit the website
  • uninstall VMware Workstation or VMware Player software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7)

Recommended: Identify vmnat.exe related errors

If vmnat.exe is located in a subfolder of C:\Windows, the security rating is 19% dangerous. The file size is 135,168 bytes (20% of all occurrences), 437,976 bytes and 9 more variants. The program has no visible window. It is not a Windows core file. Vmnat.exe is a Verisign signed file. Vmnat.exe is digitally signed. You can uninstall this program in the Control Panel.

If vmnat.exe is located in the C:\Windows folder, the security rating is 96% dangerous. The file size is 48,640 bytes. There is no file information. Vmnat.exe is located in the Windows folder, but it is not a Windows core file. The program is not visible. The software starts upon Windows startup (see Registry key: MACHINE\Run). The program uses ports to connect to or from a LAN or the Internet. The vmnat.exe file is not a Windows core file. Vmnat.exe is able to monitor applications.

Important: Some malware camouflages itself as vmnat.exe, for example Backdoor.Win32.SdBot.nhv (detected by Kaspersky), and Worm:Win32/Pushbot.gen (detected by Microsoft). Therefore, you should check the vmnat.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

Part of VMware network drivers (pc emulation software)
  Andre   (further information)
Das ist ein Teil von VMware Workstation.
  Vampire   (further information)
It's driver for VMWare NAT
Component of VMware network drivers
  Kender   (further information)
run exe file
teil von VM-Ware
it is VMWARE Player
  couleurastas   (further information)

Rating chart

Summary: Average user rating of vmnat.exe: based on 9 votes with 7 user comments. 7 users think vmnat.exe is essential for Windows or an installed application. 2 users think it's probably harmless.

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Best practices for resolving vmnat issues

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

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

Other processes

vmnat.exe [all]