Solution 1:
Insufficient Privileges
•Close the error screen and check if the user logged in is
administrator or should have admin privileges.
•Logout the user and login from admin User.
Restart the computer and try to install QuickBooks again. If
the error appears then go for the next solution.
Solution 2: Enable
Windows Installer Service
·
Go to search and type SERVICES
·
Select Services app and click to open
·
Search and locate Windows Installer Service on
the right hand side panel
·
Click to open the service and check for status:
Running
·
(If not RUNNING then) Click Start to start the
service.
·
Close the services window
Try installing QuickBooks again if the error persists then
go for next solution
Solution 3: Update
Windows
When the windows system files get corrupted then the only
solution is to check and run the windows update. It automatically checks for
corrupted files and replaces them with fresh updated files.
•Go to settings then click on Updates and Security
•Click on Check for Updates to get Windows updated
Restart the computer and try to install QuickBooks again. If
the error occurs the dial QuickBooks Error Support team to get the solution for
QuickBooks Error 1601.


