There is no single reason you can get error 6073 in QuickBooks, and if you are dealing with the same issue, you will need to perform multiple troubleshooting solutions given below.
First, you must make sure that only the server computer is hosting the company file and all other workstations connected to it are operating in single-user mode.
Once verified, go to the QuickBooks installation folder on the server computer and check the company file folder’s properties. You must ensure that it is not a read-only folder.
Finally, you will need to ensure that you are not accessing the company file using a remote access software like Log Mein.
After verifying all the above points and making the necessary changes, if you still get QuickBooks error 6073, there must be some issues in your QuickBooks Desktop installation that experts can fix. Dial +1-800-579-9430 and talk to our team of certified QuickBooks Desktop experts now.