To transfer QuickBooks to New PC, you must install Quickbooks accounting software on the new computer. After that, you will need to update to the latest QuickBooks version. Now you will need to take the backup of the company file on the old pc and save it on an external flash drive.  Open a new computer and restore this file. Now you can use the company file on the new pc. For complete details, view this infographic by visiting this link https://accountingassist.us/blog/transfer-quickbooks-desktop-to-another-computer/