What is nvoclock?

Nvoclock.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 nvoclock.sys is a Windows system file or if it belongs to an application that you can trust.

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

Nvoclock.sys file information

The process known as NVidia System Utility Driver or NVIDIA System Utility Driver or NVR0Dev belongs to software NVIDIA nTune or NVR0Dev or NVIDIA Enthusiasts Platform KDM or DualCoreCenter by NVidia ( or NVIDIA (

Description: Nvoclock.sys is not essential for the Windows OS and causes relatively few problems. Nvoclock.sys is located in the C:\Windows folder. Known file sizes on Windows 10/8/7/XP are 29,696 bytes (55% of all occurrences), 6,912 bytes, 6,272 bytes or 6,784 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. There is no detailed description of this service. The nvoclock.sys file is not a Windows system file. The process can be uninstalled in the Control Panel. nvoclock.sys appears to be a compressed file. Therefore the technical security rating is 25% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you experience any issues with installation of nvoclock.sys, you can also uninstall the associated program (Start > Control Panel > Uninstall a Program > NVIDIA nTune or DualCoreCenter).

Recommended: Identify nvoclock.sys related errors

If nvoclock.sys is located in the C:\Windows\System32\drivers folder, the security rating is 10% dangerous. The file size is 38,304 bytes. The program has no visible window. The file is a Verisign signed file. Nvoclock.sys is certified by a trustworthy company. There is no detailed description of this service. Nvoclock.sys is not a Windows system file. nvoclock.sys appears to be a compressed file.

Important: Some malware camouflages itself as nvoclock.sys. Therefore, you should check the nvoclock.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

Part of nvidia's ntune program
  Anon   (further information)

Summary: Average user rating of nvoclock.sys: based on 1 vote with 1 user comment. One user thinks nvoclock.sys is essential for Windows or an installed application.

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Best practices for resolving nvoclock issues

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

nvoclock.sys [all]