Answer: Indeed, deleted data and formatted data are restorable before they are overwritten. Deleting data just marks a deletion mark in file allocation table while formatting a drive empties the file allocation table. Both of them do not operate data area. If users want to erase data stored on hard disk permanently, free third party drive wipe software is needed, and MiniTool Partition Wizard is a good choice. Data wiped by this program can not be recovered any more.
How to Wipe Hard Drive via MiniTool Partition Wizard before Selling PC
This free drive wipe software provides 2 functions to erase data permanently, namely “Wipe Partition” and “Wipe Disk”. They are employing the same principle, and the only difference is that “Wipe Disk” operates the entire disk while “Wipe Partition” just operates a single drive or partition. Next, let’s take partition wiping for example. Launch MiniTool Partition Wizard and we can see the interface below:
To wipe a partition, we need to select the target partition and choose “Wipe Partition” function from the left pane to get the following interface:
Here, 5 wiping methods are given. Different mode requires different time and provides different result. It is highly suggested that users choose the last method to wipe a hard drive since it is most powerful. Then, click “OK” to go back to the main interface:
Now we can see the selected drive becomes unallocated, but it is only for preview. And users need to click “Apply” button to apply the change. After application we can say all data saved on this partition have been erased permanently.
Now users would know how to wipe hard drive before selling their PC or laptop. The free drive wipe software MiniTool Partition Wizard must be their best choice.