How to really erase old files in my laptop?

  • Thread starter yungman
  • Start date
  • #36
omigosh
3
4
If you really want to be sure... replace the hard drive in it
 
  • #37
sysprog
2,613
1,783
If you really want to be sure... replace the hard drive in it
That alone would of course not preserve any content; if it were done along with a correct backup and restore, it would be sufficient but not necessary.
 
  • #38
harborsparrow
Gold Member
641
165
It turns out, Microsoft finally built in a utility for overwriting and clearing free space. And I've tried it and it seemed to work well. I learned about it from this article:

https://www.howtogeek.com/137108/how-securely-overwrite-free-space-in-windows/

The command is:

cipher /w:C:\

where C is the letter of the drive you want to securely overwrite the free space on.

Use a command prompt window with Administrative privileges.

Don't run anything else while it's going on. Expect it to take hours, possibly run it overnight.
 
  • #39
sysprog
2,613
1,783
It turns out, Microsoft finally built in a utility for overwriting and clearing free space. And I've tried it and it seemed to work well. I learned about it from this article:

https://www.howtogeek.com/137108/how-securely-overwrite-free-space-in-windows/

The command is:

cipher /w:C:\

where C is the letter of the drive you want to securely overwrite the free space on.

Use a command prompt window with Administrative privileges.

Don't run anything else while it's going on. Expect it to take hours, possibly run it overnight.
It's not for SSDs.
 
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