What is nassvc.exe?

The genuine nassvc.exe file is a software component of LinkStation by Buffalo.
The Buffalo LinkStation NAS System is an operating system designed to work with LinkStation, a network attached storage appliance that provides centralized data access and management. Nassvc.exe runs the Power Management Service for LinkStation NAS System. This is not an essential Windows process and can be disabled if known to create problems. The Buffalo LinkStation NAS System features data backup, file sharing, media streaming, and support for multiple platforms. The NAS System offers multiple levels of RAID support with the ability to add storage capacity using a plug-and-play USB accessory port, and backup data from the LinkStation. LinkStation NAS System also features a BitTorrent client to manage torrent files. Buffalo Inc. is a Japanese company that is currently a subsidiary of Melco Holdings Inc. Buffalo was originally established as a manufacturer of audio equipment. In 1981, Buffalo made its entry into the computer peripheral market by developing their first EEPROM (Electrically Erasable Programmable Read-Only Memory) writer, capable of storing small amounts of non-volatile memory. The company derives its name from the American Bison. Buffalo is currently based in Austin, Texas, USA.

NASSvc stands for NAS Power Management Service

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 nassvc.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 nassvc.exe related errors

Nassvc.exe file information

Windows Task Manager with nassvc
Nassvc.exe process in Windows Task Manager

The process known as NAS Power Management Service belongs to software NAS Power Management Service or NAS PM Service or BUFFALO NAS Navigator2 by BUFFALO INC (

Description: Nassvc.exe is not essential for the Windows OS and causes relatively few problems. The nassvc.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 245,760 bytes (39% of all occurrences), 251,184 bytes, 251,760 bytes, 233,472 bytes or 251,256 bytes. 
The program has no visible window. The nassvc.exe file is not a Windows core file. It can change the behavior of other programs or manipulate other programs. The file has a digital signature. Nassvc.exe is able to connect to the Internet and record keyboard and mouse inputs. Therefore the technical security rating is 51% dangerous, however you should also read the user reviews.

Uninstalling this variant: The developer Buffalo provides a website for help and for updates. There is also an uninstaller (Control Panel ⇒ Uninstall a Program ⇒ BUFFALO NAS Navigator2).

Recommended: Identify nassvc.exe related errors

If nassvc.exe is located in a subfolder of the user's profile folder, the security rating is 48% dangerous. The file size is 251,256 bytes. It can change the behavior of other programs or manipulate other programs. The program is not visible. It is a Verisign signed file. The file has a digital signature. The file is not a Windows system file. Nassvc.exe is able to connect to the Internet and record keyboard and mouse inputs.

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

I have installed without the NASPowered up and it was taking 25% processing power, 251760 bytes
  Dan Maskell. Zippy Systems  

One user is not sure about it.

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Best practices for resolving nassvc issues

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

nassvc.exe [all]