Vince-

Sometimes a task can be stuck behind the scenes, that can effect performing a task the requires exclusive rights, like the installation of the service pack.  I would first disconnect the users in the DBRegister.  If that does not work, then I would shout down the Pervasive Services at the server (not just the workstation).  While at the server check for any Open Files in Computer Management.  Also confirm that the Sage folder is shared with FULL Control.  Sometimes doing a server reboot is also useful.

I have enclosed a link to an article that further explains these steps and options to perform to help clear that task.

Please see enclosed article  Error: "The Sage BusinessWorks program is currently running. Close all Sage BusinessWorks tasks, exit Sage BusinessWorks, and restart this installation." (18073)   Link:  https://support.na.sage.com/selfservice/viewdocument.do?externalID=18073

Sincerely,

Coleen

It was reboots are required after installing the SP, server and each workstation

Hi Vince-

I am glad to hear rebooting resolved your issue.  The general rule is that you only need to reboot during an install if you are prompted or getting specific errors that would require a reboot.  Most installs are not prompted for a reboot and a reboot is not required. 

With that said, in reviewing past install instructions (v2017 for example), there was instructions if installing on Windows 10 machine, a reboot will be required after installation.  But on the current install instructions, those instructions are no longer included and most installs are completed without rebooting.

I will send a note to have the install instructions reviewed and make any necessary changes to the installation articles if needed.

Sincerely,

Coleen