Sage 50 Error 1704 typically occurs during the installation or uninstallation of the software when remnants of a previous installation are interfering with the current process. This error can disrupt the installation of updates or new versions, leading to frustration and delays in accessing the software. To fix Sage 50 Error 1704, you may need to clear the Windows Installer cache, manually remove the remnants of previous installations, or use the Windows Installer Cleanup Utility. It’s also advisable to ensure that no other software is running during the installation process to prevent conflicts. If the issue persists, contacting Sage support for further assistance may be necessary.