To transfer QuickBooks Desktop to new computer without damaging company data, begin by creating a complete backup of your company file and storing it in a secure location. Before moving anything, run Verify Data and Rebuild Data in QuickBooks to identify and repair minor file issues. Next, install the same QuickBooks Desktop version on the new computer and transfer your .QBW or .QBB file using a secure drive or the QuickBooks Migration Tool. Once the file is restored, review invoices, payroll, reports, and account balances to confirm data integrity. For independent transfer help, contact BooksMerge at +1-866-513-4656.