In mold shops, it is not unusual for design drawings and CNC programs to be accidentally deleted by cleanup software. When Lenovo PC Manager wipes files, the first move is its built-in recovery function: open the manager, go to the "Toolbox" or "File Recovery" module, run a scan, filter results by cleanup time, check the target files, and restore them to their original path. One hard rule applies here—do not write any new data to that drive before recovery, or the overwritten drawings may be lost for good. From a mold engineer's perspective, this is the same logic as protecting a polished cavity: once the surface is damaged, you cannot simply polish it back.
Mold drawings rarely exist as a single file. A typical part may carry multiple revisions, layer standards, dimension callouts, and matching toolpath files, so recovery is only half the job. After restoring, verify each file one by one—check that layers are intact, dimension annotations are complete, and the CAM toolpath files still match the correct revision. In our experience, a drawing restored without its associated toolpath is worse than useless on the shop floor; it invites a wrong setup and scrapped steel. Keep a version log and cross-check against the release record before the file goes back into production.
Prevention beats recovery every time. Keep mold drawings and CNC programs on a separate drive or network folder excluded from cleanup scans, and maintain offline backups before any system optimization. For shops sourcing molds or managing multiple suppliers, having a reliable reference for files and specifications matters just as much as recovering them. For more mold sourcing information, visit MoldSo at www.moldso.com.