What is cbfsMntNtf4.dll?

CbfsMntNtf4.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. The following information can help you determine if cbfsMntNtf4.dll is a Windows system file or if it belongs to an application that you can trust.

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CbfsMntNtf4.dll file information

The process known as Mount Notifier belongs to software Callback File System by EldoS (

Description: CbfsMntNtf4.dll is not essential for the Windows OS and causes relatively few problems. CbfsMntNtf4.dll is located in a subfolder of C:\Windows or sometimes in the C:\Windows\System32 folder or in a subfolder of "C:\Program Files\Common Files". Known file sizes on Windows 10/8/7/XP are 156,456 bytes (59% of all occurrences), 155,496 bytes, 156,520 bytes or 170,344 bytes. 
The file is a Verisign signed file. The cbfsMntNtf4.dll file is certified by a trustworthy company. The software is loaded during the Windows boot process (see Registry key: ShellServiceObjectDelayLoad). CbfsMntNtf4.dll is not a Windows system file. Therefore the technical security rating is 20% dangerous.

Recommended: Identify cbfsMntNtf4.dll related errors

Important: Some malware camouflages itself as cbfsMntNtf4.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the cbfsMntNtf4.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.


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Best practices for resolving cbfsMntNtf4 issues

A clean and tidy computer is the key requirement for avoiding problems with cbfsMntNtf4. 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 cbfsMntNtf4.dll 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

cbfsMntNtf4.dll [all]