Payroll updates are crucial, but QuickBooks Error 15107 can interrupt them unexpectedly. The error generally results from system misconfigurations, damaged installation files, or blocked internet access. To fix it, users should start by checking firewall settings and allowing QuickBooks processes through. Next, ensure QuickBooks is updated to the latest release. If the problem persists, running a repair using QuickBooks Tool Hub can resolve underlying issues. Preventive steps like enabling auto-updates and ensuring stable internet reduce future disruptions.