How to Fix QBCFMonitorService not running on this computer Error?
                     Is QBCFMonitorService not running 
on this system Error troubling you?
One of the crucial QuickBooks services is QBCFMonitorService also 
mentioned as QuickBooks Company File Monitoring Service which is 
executed from the qbcfmonitorservice.exe file located within the 
QuickBooks installation directory, usually inside "C:\Program 
Files\Common File\Intuit\QuickBooks" folder. QBCFMonitorService not 
running on this error message arises when a user seeks to run 
QuickBooks Database Server Manager to install multi-user mode.
However, once you check the status of the service in the service 
window, you'll find the service running with no issues. You may require 
to utilize multiple fixes to urge eliminate the QBCFMonitorService not 
running on this computer error message. Follow the entire article for 
detailed troubleshooting instructions.
What Causes is QBCFMonitorService not running 
on this computer Error?
Many reasons account for 
QuickBooks displaying QBCFMonitorService not running on this 
computer error message. One among the main problems of errors 
associated with QBCFMonitorService is Windows Defender and third-
party firewall applications that restrains QuickBooks reference to the 
corporate file stored on the server. Following are some more problems 
that cause QBCF Monitor Service to stop on Windows:
•    QuickBooks installed on the server isn't properly set up to host 
company files during a multi-user environment.
•    For some reason, QBCFMonitorService isn't running or stopped on 
the server hosting the corporate file.
•    Accidentally the QuickBooks Database Manager Service file 
(qbcfmonitorservice.exe) is deleted from the server.
•    You are using an outdated version of QuickBooks Database Server 
Manager on your Windows computer and also the server. (Install and 
Update QuickBooks Database Server Manager Now)
Resolve QBCFMonitorService Not Running on This 
Computer
Below are some solution methods to resolve this error. Please read 
them carefully and fix this problem easily.
Solution 1: Confirm QuickBooks Multi-User Hosting set up on 
the Server
•    Open QuickBooks Desktop and click on the File tab.
•    Move your mouse cursor over the Utility option.
•    Select the choice that says Host Multi-User Access.
•    Once you get the confirmation box click Yes.
•    Make sure you're activating hosting only on the server.
•    Make sure that the Multi-user Hosting isn't running on any of the 
workstation computers.
•    To verify open QuickBooks and move to the File tab.
•    If you see the option Switch to Single-User mode, then it means 
the QuickBooks is running under multi-user mode, and you require 
to click Switch to Single-User mode.
•    If you see the option that says Switch to multi-user mode, then 
this means that the application is already running under single-user 
mode and no changes in settings are required.
Step 2: Install the Updates of QuickBooks Database 
Manager Server
•    Follow the link and verify the newest release of the QuickBooks 
Database Manager server for your QuickBooks version.
•    QB Desktop 2018
•    QuickBooks Desktop 2019
•    QuickBooks Desktop 2020
•    Now open QuickBooks if you're not having the recent updates 
and patches installed.
•    From the assistance tab click Update QuickBooks
•    Checkmark all the QuickBooks features and releases under the 
Update Now tab.
•    Click Get Updates and wait until the application installs all the 
available updates.
•    Make sure to restart QuickBooks Desktop on both the server and 
workstation after the update.
Step 3: set up QuickBooks Database Manager Service
•    Press Windows + R on your keyboard and write services.msc in 
the run box
•    Click OK or hit Enter.
•    Search for the QuickBooks DBXX service in the list of services.
•    If you discover the service status as stopped, then right-click the 
service and choose Properties.
•    Under the overall tab change the Startup Type to Automatic from 
Manual.
•    Now move to the go browsing tab and set the option to Local 
System Account from This Account.
•    Move to the Recovery tab and from the drop-down list of the 
primary failure, second failure, and subsequent failure select 
restart the Service.
•    Now click Apply and OK.
If you're still having problems accessing the corporate file on the 
server and if QuickBooks remains displaying QBCFMonitorService 
not running on this computer then you may require to reinstall the 
entire QuickBooks Desktop application using the QuickBooks 
Clean Install Tool. If you don't feel comfortable applying the 
troubleshooting steps mentioned during this article.