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question on erase empty space on external hdd.sdelete

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(@williamsonn)
Posts: 85
Trusted Member
Topic starter
 

Hello.when you delete a file on an external hdd (not wiping,but simple delete)and then run sdelete (or other common software which allows of wiping a single file with a Mouse click)on the folder in which is stored the filewill the file be erased,wiped,or it is still into any recycle bin which is neccessary to delete?

 
Posted : 24/12/2013 12:17 am
jhup
 jhup
(@jhup)
Posts: 1442
Noble Member
 

Maybe.

Presuming you are using Microsoft SDelete, if the options -c or -z were used then the free, released, or remnants of the deleted files would be "cleaned" or "zeroed", respectively.

Yet, Microsoft explicitly states

The reason that SDelete does not securely delete file names when cleaning disk free space is that deleting them would require direct manipulation of directory structures. Directory structures can have free space containing deleted file names, but the free directory space is not available for allocation to other files. Hence, SDelete has no way of allocating this free space so that it can securely overwrite it.

Of course you knew all this already, since you did a quick search just before posting here. You were just testing us . . . mrgreen

 
Posted : 24/12/2013 7:43 pm
jaclaz
(@jaclaz)
Posts: 5133
Illustrious Member
 

Of course you knew all this already, since you did a quick search just before posting here. You were just testing us . . . mrgreen

Actually re-testing us (to be sure wink ), our friend Williamsonn has started at the beginning of the year a whole burst of similar threads, oriented to deletion/secure deletion/wiping and connected possibilities of recovering, but evidently has had not yet the time to do some tests as he was suggested doing at the time.

jaclaz

 
Posted : 24/12/2013 9:02 pm
binarybod
(@binarybod)
Posts: 272
Reputable Member
 

I think it probably took longer to write the question and post it here than it would to actually test the outcome.

 
Posted : 27/12/2013 5:42 pm
(@williamsonn)
Posts: 85
Trusted Member
Topic starter
 

Dear friends,i am not retesting you,as i had not asked this question before. Jhup, i did not understood you. Do you mean that sdelete deletes recycle bin contents but do not delete their name?summarizing'when you use free space deletion software,recycle bin objects are targeted as free space and cleaned?

 
Posted : 16/01/2014 6:19 am
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