Error Intuit Sync Manager has stopped working when trying to set up Intuit Sync Manager within QuickBooks.
Solution 1: Update QuickBooks to the latest release.
Solution 2: Follow the steps in Microsoft Diagnostic Tool to resolve .NET, MSXML, and C++ issues.
Solution 3: Uninstall and reinstall your QuickBooks.
Solution 4: Rename the Intuit Sync Manager folder.