Originally Posted By: Johnny2Bad
I read the CNET review of Bleachbit. Although a review of an older version, one line caught my attention, where they said Bleachbit removed some 3,000 file in a few seconds.
There is no way a computer system, regardless of whether it's a Windows OS machine or otherwise, can delete any significant number of files in a few seconds. What it does is remove the index to those files so that they cannot be addressed in the usual way; the actual data remains. A forensic audit of the hard drive will easily be able to recover all of them.
A reasonable analogy is if you had a book and you ripped out the index. A computer can't find the rest of the book's pages without an index. A forensic recovery tool (there are many) that recovers "deleted" data from a hard drive would be like you looking at the book and realizing you can still read all the pages, there just is no index. In other words, the information has not been deleted at all.
You need to secure delete files if you want them actually gone. This takes some time, as the data must be written over with random data (1's and 0's) and since the residual magnetic information can be recovered even after this step, it need to be done a number of times. A few dozen is considered secure.
With Solid State Drives, it's even more difficult to delete data. SSDs can only re-write the same area a fixed number of times before the drive fails. Because of this, they all employ special data management, so that data is written to the entire drive space, rather than repeatedly to a certain area. This makes re-writing that space that held the data difficult or impossible; the data management interferes. That is not to say it's impossible, but in that case you have to realize you are significantly reducing the life of the drive.
If you want security, you must use "old school" (and slower) magnetic technology hard disk drives and secure delete by re-writing over the original data many times with random data.
What a tool like BleachBIt will do, however, is prevent the reading of these cached and cookie files by whatever program wrote them in the first place. In that respect it offers some security. It's just that if you want those files gone, gone, gone, you have to jump through far more hoops than a quick three second delete.
We are talking about cleaning up your web browsers and cleaning up the hard drive.
We are not talking about wiping hard drives clean like Hillary did so the FBI cant retrieve them.
ANY FILE you ever delete, like for an example, a photo you hate, on your computer is still on your computer, your computer just no longer recognizes that it exists, then when the "space" is needed it simply writes right over it because it doesnt know it is there.
If you wish to TRULY wipe your hard drive clean to avoid detection for some unknown reason Bleachbit gives you that option and warns you that "this will take a long time"
Im not sure of the reason for your post. I think if you researched and actually used and learned the program you would understand, your commenting on something you have not used.
Again, we are talking about improving the speed of your computer, not avoiding detection by the FBI.
But Bleachbit DOES give you that option and Hillary used it.