What is nSvcAppFlt.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 nSvcAppFlt.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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NSvcAppFlt.exe file information

Windows Task Manager with nSvcAppFlt
NSvcAppFlt.exe process in Windows Task Manager

The process known as app_filter Module belongs to software NVIDIA ForceWare Network or app_filter Module or NVIDIA ForceWare Network Access Manager or NVIDIA nTune or NVIDIA Drivers or NVIDIA Display Control Panel or NVIDIA ForceWare Network Access by NVIDIA (

Description: NSvcAppFlt.exe is not essential for Windows and will often cause problems. The nSvcAppFlt.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 139,264 bytes (15% of all occurrences), 598,016 bytes and 16 more variants. 
The program is not visible. The nSvcAppFlt.exe file is not a Windows core file. There is no information about the author of the file. The program can be removed using the Control Panel's Add\Remove programs applet. NSvcAppFlt.exe is able to monitor applications. Therefore the technical security rating is 31% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall the program NVIDIA ForceWare Network Access Manager or NVIDIA ForceWare Network, or ask the software vendor for support. Click on NVIDIA ForceWare Network Access Manager or NVIDIA ForceWare Network in Windows Control Panel (Software or Programs section) to uninstall it.

Recommended: Identify nSvcAppFlt.exe related errors

If nSvcAppFlt.exe is located in a subfolder of the user's profile folder, the security rating is 64% dangerous. The file size is 9,728 bytes (50% of all occurrences) or 11,264 bytes. There is no information about the author of the file. The program has no visible window. The software starts upon Windows startup (see Registry key: Run). NSvcAppFlt.exe is not a Windows system file.

Important: Some malware camouflages itself as nSvcAppFlt.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Downloader (detected by Symantec), and TrojanDownloader:Win32/Wadolin.A (detected by Microsoft). Therefore, you should check the nSvcAppFlt.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

it is a file of the NVIDIA Corp firewall application comming with there new ASUS chipset most likly cause from routers or small networks.
this is a part of nVidia Access Manager (firewall)
nSvcAppFLT is part of nVidia Networking package
  Andras   (further information)
Intermittently this process takes around 50% of CPU time. When this happens Internet Explorer won't respond and Informatica's PowerCenter client program Designer gives this message: "This action cannot be completed because the other program is busy. Choose 'Switch To' to activate the busy program and correct the problem."
I have a mayor problem with this nsvcappflt.ese that this dont let me in to the internet in any case, i just finish its process and boila, now i have internet again. may be related to the nvidia firewall problems.
  aaron santibanez  
This is a app_filter (filter application, for Nvidia Firewall) ASUS Chipset!
causes programs as Halo to have trouble to connect correctly
Intermittently keeps my dual-core at around 50% (both cores). Also makes it necessary to left-click with the mouse more than once, depending on context. Turned it off, CPU load went back to normal, mouse worked again.
  James Graham  
Whatever it is -possibly that Nvidia firewall- it uses 355 MB of RAM, and I will tolerate that ----hence DELETE!!
  mike k  
I cannot play games like cs 1.6 or half-life without first ending this proccess
All i know is that it used a lot of memory and slowed down games and computer.
You do not need this aplication running. It is a filter for incoming data used for all sorts of internet downlaoding and conections. It is used by nforce chipsets and has tendancy to run wild when used with download clients and eat up lots of memory and consume the CPU. If you find your computer or downlaod server is running slow with an nforce chipset check the memory and cpu usage in the task manager or Nvidia system monitors and end the application. It will restart if needed again later automatically.
Was consuming almost 2GB RAM of 8GB total RAM on my Vista64 system - too expensive for any funcionality. Happily disabled!
  Flavio de Sousa  
A file of Nvidia, maybe application filter but sure it takes up a lot of page file especially when i run my bicomet
Ist Bestandteil der nVidia Firewall / is part of the nVidia firewall
It causes both MSN messenger not to load, problems with Windows Live Photo Gallery and also causes Windows Live Mail to crash
Causes login problems for MSN Live messenger - If you stop the process, it will allow you to login to the service
This program seems to conflict with Windows Live Communications Program as well, needed for MSN. Finishing its process allowed my MSN to work again.
Some application filter which is useful but the memory it uses outweighes its usefulness
It shuts down at my startup.
its stopping windows live messenger signing on
I have to end this one through Task Manager in order to use MSN messenger
It could be related to nVidia's first package setting among other things.
  ne0n   (further information)
msn live messenger doesn't sign in. u can safely end the nsvcappflt.exe task from the task manager.
When I run Rappelz Online RPG, the app filter uses 100% cpu and I cant do run the program (rappelz) further, thus I then ctrl alt delete and end process. The problem is then solved till I restart my computer and run the program again.
While not a virus, the NVIDIA ForceWare Network Access Manager (nsvcappflt.exe) is installed on your computer when updating a NVIDIA hardware product's drivers. Be sure to uncheck the option for the installation of this product during any updates as it has been known to cause more harm than good by using up tremendous amounts of RAM, significantly slowing down your computer. The easiest way to remove this program is to go to your Control Panel and remove the NVIDIA ForceWare Network Access Manager in Add/Remove Programs. Be sure to only remove this and nothing else or you may experience signif
  73A37   (further information)
I don't know much, but it appears to continually cause lag spikes in my computer. I've killed the process and everything's working fine, so it's safe to delete.
Listed as using 175.5 MB of RAM memory, but once shut down, freed just over 2 GB!

Rating chart

Summary: Average user rating of nSvcAppFlt.exe: based on 30 votes with 28 user comments. 7 users think nSvcAppFlt.exe is essential for Windows or an installed application. 4 users think it's probably harmless. 17 users think it's neither essential nor dangerous. 2 users suspect danger. 7 users don't grade nSvcAppFlt.exe ("not sure about it").

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Best practices for resolving nSvcAppFlt issues

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

nSvcAppFlt.exe [all]