Hello, my name is Jessie, and I've been using QuickBooks for all of my accounting requirements for over a decade. The QuickBooks Install Diagnostic Tool (QBinstall) is a versatile tool for diagnosing and resolving technical difficulties that may arise during the QuickBooks installation process like QuickBooks Update Error 15243. If you're encountering problems with QuickBooks during installation, the QBinstall tool will help you resolve the issue.
https://www.quickbak.com/quickbooks-update-error-15243/