What is hamachi?

The genuine hamachi.sys file is a software component of LogMeIn Hamachi by LogMeIn.
Hamachi.sys is a network interface driver that belongs to LogMeIn Hamachi, a centrally-managed VPN (virtual private network) service that can extend a network connection to multiple computers while maintaining data security. A network interface driver is a software program that can access data flowing through a computer network. This is not a critical Windows component and should be removed if known to cause problems. Removing this file may cause problems while running LogMeIn products. LogMeIn Hamachi has been designed as a zero-configuration VPN application that can emulate virtual local network connections with other computers over the Internet. The paid version of LogMeIn Hamachi can be run as a background process on idle computers. LogMeIn Hamachi is available for Windows, Mac OSX, Linux, FreeBSD, Android and iOS platforms. LogMeIn is a multinational software company that develops solutions for remote control, systems management, file sharing, business collaboration, data backup, and on-demand customer support of PCs, Macintosh computers, smartphones, servers and other connected devices. The company was founded in 2003 as 3am Labs, but changed their name to LogMeIn, Inc. in 2006. It is currently headquartered in Boston, Massachusetts, USA.

Hamachi stands for Hamachi Virtual Network Interface Driver

Hamachi.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if hamachi.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for hamachi drivers in need of updating

Hamachi.sys file information

The process known as Hamachi Virtual Network Interface Driver or Hamachi Network Interface belongs to software Hamachi Network Interface or Hamachi Virtual Network Interface Driver by LogMeIn ( or Applied Networking (

Description: Hamachi.sys is not essential for the Windows OS and causes relatively few problems. The hamachi.sys file is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 25,280 bytes (37% of all occurrences), 25,544 bytes, 16,224 bytes, 10,345 bytes or 26,176 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The service has no detailed description. The hamachi.sys file is not a Windows core file. The file is a Verisign signed file. It is certified by a trustworthy company. hamachi.sys appears to be a compressed file. Therefore the technical security rating is 14% dangerous, however you should also read the user reviews.

Recommended: Identify hamachi.sys related errors

Important: Some malware disguises itself as hamachi.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the hamachi.sys 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

Scheinbar harmlos - emuliert LAN ├╝ber Internet
emulates ethernet interface to Hamachi VPN services

Summary: Average user rating of hamachi.sys: based on 1 vote with 2 user comments. One user thinks hamachi.sys is essential for Windows or an installed application. One user is not sure about it.

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Best practices for resolving hamachi issues

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

hamachi.sys [all]