Solutions to Resolve QuickBooks Error Code 6144

Method 1: Start the QuickBooks service

Method 2: End the Programs Conflicting with QuickBooks Desktop

Method 3: Change the account type

Method 4: Create folders in the C Drive

Method 5: Copy the company file into the new folder

Method 6: Setup inbound and outbound firewall rules

Method 7: Run the QuickBooks database server manager

Method 8: Restore the QuickBooks company file

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