Acer TravelMate P653-V - Manual (Page 30)

Acer ProShield (Only for certain models) 10
Englis
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Data Removal
Here you can select files to be completely removed from the hard disk.
The File Shredder overwrites the data to make recovering the data
impossible.
Warning: Make sure you select only the information you want to
shred. Once you have shredded a file or folder, it is impossible to
recover the data.