Office installation can encounter error codes 0-2048(0) and 0-2054(0) due to issues accessing a valid configuration file or source path. Error 0-2048(0) indicates a missing or incorrectly referenced XML configuration file, while Error 0-2054(0) signifies a general installation failure. Common causes include corrupted configuration files, remnants of previous Office versions, or insufficient administrative permissions. To resolve these errors, one should uninstall all previous Office components, clear temporary and app data folders, generate a new XML configuration file using the Office Customization Tool, and install Office with the Deployment Tool. If problems persist, additional steps include using Microsoft's Office Uninstall Support Tool, installing from an offline installer, and checking for disk errors and sufficient free space.