How to Fix Quickbooks Error 1327 Windows 10 after update 1-855-409-2300 To fix QuickBooks Error 1327 on Windows 10 after an update, follow these steps: 1. Check Drive Mapping: Open File Explorer and ensure that the drive mentioned in the error message is correctly mapped. If the drive is disconnected, reconnect it. 2. Edit Registry: Press Windows + R, type regedit, and press Enter. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ Explorer\Shell Folders. Locate the incorrect drive letter and change it to a valid one. Run QuickBooks Install Diagnostic Tool: Download and run the QuickBooks Install Diagnostic Tool from the official Intuit website. Follow the on-screen instructions to complete the repair. Update Windows and QuickBooks: Ensure both Windows and QuickBooks are up to date with the latest patches and updates. Reinstall QuickBooks: If the issue persists, uninstall QuickBooks, restart your computer, and then reinstall the software. These steps should resolve Error 1327 and restore QuickBooks functionality.