Installation issues in Quickbooks can cause Quickbooks error 6160 and this error is usually seen while using premier solution.

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Causes:
Large number of OLE controls.
OS configuration might not be valid.
Disabled shortcuts.
Dependency services are disabled.

Ways to get Quickbooks error 6160 fixed:

Close Quickbooks.
Open run box.
Move to uninstall/change the program.
Select Quickbooks and then click on uninstall/change tab.
In the Quickbooks installation windows, go to the radio button.
Click on the repair tab.
Click on Finish.
Reboot your system.
Now, open Quickbooks.
Open utilities tab.
Select the option of Stop hosting multi-user access.
Click yes on the permission windows.

Still facing trouble in resolving Quickbooks error 6160, Call QBSsolved at 888-910-1619.

https://www.qbssolved.com/how-can-quickbooks-error-6160-be-fixed/