If a user changes a file location to another and tries to access the same file using the older path unknowingly, the “QuickBooks Company File Not Found” displays on the PC. You can simply check the file location by using the search utility in Windows then reopening the file with the changed path. However, if the given tips don’t resolve the error, place a call on the helpdesk number 1-855-856-0042 to get better tech help.