Managing Backup Files If you choose to overwrite existing versions of files when you upgrade, the upgrade tool creates a backup file for each overwritten file. These backup files remain after the upgrade. You can remove them after you verify that the upgrade succeeded. Contents Backup File Creation Restoring an Incorrectly Upgraded Version from a Backup If an upgraded version of a file is incorrect, you can use the backup file to restore the original content of the file. Locating and Removing Backup Files When the upgrade is complete and you are satisfied that the upgraded files are correct, you can remove the backup files to free up disk space. Each file archive is stored under the file vault archive folder. Parent topicUpgrading SOLIDWORKS Files Required Upgrade Utility Software System Requirements Installing the File Version Upgrade Utility Preparing to Upgrade Selecting Version Settings Performing a Trial File Upgrade Running the Upgrade Utility Creating and Using Work Instruction Files Completing an Interrupted Upgrade After Upgrading