Core Viewpoint - The article provides a detailed guide on how taxpayers can back up and restore their data in the Individual Electronic Tax Bureau (withholding end) after changing computers and reinstalling the software [10]. Group 1: Data Backup and Recovery Process - Taxpayers can back up data from the original computer by logging into the Individual Electronic Tax Bureau, navigating to system settings, and selecting backup options [11]. - The backup process involves choosing a storage path, confirming the backup, and ensuring the database backup is successful [12]. - To restore data on a new computer, users must log into the Individual Electronic Tax Bureau, access the recovery settings, and select the backup file to complete the restoration [13]. Group 2: Data Download and Submission - Taxpayers must visit the tax authority to apply for the "withholding client data download function," which is valid for 72 hours [4]. - Users can log in using their personal income tax app credentials or through a QR code scan [5]. - After logging in, users can download personnel information and ensure that all necessary data is reported successfully for withholding tax declaration [8].