What is NvCpl.dll?

NvCpl.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. You can fix your NvCpl.dll problem by downloading the correct NvCpl.dll file. The following information can help you determine if NvCpl.dll is a Windows system file or if it belongs to an application that you can trust.

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NvCpl.dll file information

The process known as NVIDIA Display Properties Extension belongs to software NVIDIA Compatible Windows (version 2000 Display driver) or NVIDIA Compatible Windows Vista Display driver or NVIDIA Windows Display driver or NVIDIA Compatible Windows7 Display driver by NVIDIA (

Description: NvCpl.dll is not essential for the Windows OS and causes relatively few problems. NvCpl.dll is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 13,179,660 bytes (44% of all occurrences), 8,523,776 bytes and 74 more variants. 
The program has a visible window. The program starts upon Windows startup (see Registry key: MACHINE\Run). The NvCpl.dll file is not a Windows core file. NvCpl.dll is a trustworthy file from Microsoft. NvCpl.dll is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 6% dangerous, however you should also read the user reviews.

Recommended: Identify NvCpl.dll related errors

Important: Some malware disguises itself as NvCpl.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the NvCpl.dll 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 cannot seem to use some of my programs or at least install any because a window will pop up saying it cannot finish installing or there is a problem with windows. when starting windows, it always comes up with a window stating windows system 32 nvcpl.dll is not available or cannot be found.
Make sure to turn this off if you move from an NVIDA card to a Radeon. This was causing tremendous cpu usage until I turned it off.
Nvidia ;)
It can be a Nivida Display Driver Service or a virus in disguise or a worm or trojan
I believe it has been compromised it is trying to the access Com interface
it's nvidia
The entry in msconfig is RUNDLL32.EXE "C:\Windows\system32\Nvcpl.dll,NvStartup" - this is how it is run at startup. Recently it was using 50% CPU on my PC. Removed it - no system tray function now.
  Sherman Kenney  
file is used in nvidia control panel, if its infected it would be nvcpl.exe
More comments can be found here:
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Rating chart

Summary: Average user rating of NvCpl.dll: based on 121 votes with 9 reviews. 93 users think NvCpl.dll is essential for Windows or an installed application. 8 users think it's probably harmless. 8 users think it's neither essential nor dangerous. 3 users suspect danger. 9 users think NvCpl.dll is dangerous and recommend removing it. 7 users don't grade NvCpl.dll ("not sure about it").

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Best practices for resolving NvCpl issues

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

NvCpl.dll [all]