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Windows 7: Securely deleting items from recycle bin

16 Jun 2011   #11

MS Windows 7 Ultimate SP1 64-bit

Quote   Quote: Originally Posted by Zoloft View Post
Just a curiosity/paranoia question, that I have no doubt someone (brink?) knows the answer to.

I am aware when you move an item to the recycle bin and delete it, you are not actually removing the data written to your drive, simply removing the location from the index. So, my question is kinda twofold:

When moving a file to the recycle bin, does windows actually write a second copy of the data in another location, ie, the recycle bin, or does it simply change the location of the item in the index, from it's original location, to the recycle bin.

Secondly, assuming that there is no second location written, the index location has simply changed, when securely deleting the recycle bin, with an app such as eraser or ccleaner, is the data actually overwritten in it's original location, or, because it was "recycled" before it was deleted, is it still in tact in it's original location?

Paranoia I'm sure, but curious none the less. . .

Thanks for all your geniuses!
Another approach:
Undelete from the recycle bin.
This is just to make referencing the file to be securely deleted easy to reference.

Now use SDELETE from the SysInternals folks.


My System SpecsSystem Spec
16 Jun 2011   #12

Windows 7 Pro-x64

I think you are thinking of Windows' TRIM command to the disk after a delete. You're most likely more correct than I but it's my understanding that the firmware on SSDs is nothing like that of HDDs. Data can move on the SSD outside of the control of the OS. Many of the new SSD drives have self-initiated garbage collection (GC) that doesn't know the difference between real data and data written as "zeros". Data is data to the SSD.
My System SpecsSystem Spec
16 Jun 2011   #13

MS Windows 7 Ultimate SP1 64-bit

welcome to Win 7 where the operating system is much smarter than that of XP or any linux variant.
SSD - Support and Q&A
My System SpecsSystem Spec

18 Jun 2011   #14
Microsoft MVP

Windows 7 Ultimate X64 SP1

Quote   Quote: Originally Posted by carwiz View Post
You sure don't want to do that if the disk is an SSD. You can seriously degrade the performance of the drive. Might even trash the drive since it will "think" there's no available space for TRIM or garbage collection.
Yup, that's right. I think the TRIM operations will take care of any free space.
My System SpecsSystem Spec

 Securely deleting items from recycle bin

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