Baka nasa recycle bin lang ang file. Kaya para para permanent ang deletion, shift + delete.
Siguradong alam nina Wally, et al. na pag nasa recycle bin, hindi deleted, kasi nasa recycle bin nga. Ang ginawa nila, dinelete din sa recycle bin.
Deleted na? Yon ang akala nila. Hindi pa rin tunay na deleted yon. All it does is delete the file record on the File Allocation Table (FAT). The file can no longer be accessed normally, but the file itself is still on the hard disc, although the space it occupies is now available for overwriting.
What does "Shift + Delete" do? The same as deleting the file, which goes to the recycle bin, then deleting the file from the recycle bin. The file cannot be accessed normally, but the file itself is still on the hard disc, although the space it occupies is now available for overwriting. Pareho lang.
Only after overwriting can you say that the file is really deleted. Since "delete" does not really mean "delete" as it is commonly understood, the proper term when referring to a true permanent deletion should be "wipe," to avoid confusion.
Why doesn't Windows just wipe every time we delete? Because wiping takes too long.
Even if you reformat, the file is still there, unless the file was overwritten in the process of installing the new OS.
To make a true unrecoverable wipe, you need special software for the purpose.
I use CCleaner (freeware) to wipe free disk space.
http://www.piriform.com/ccleaner Expect the wipe to take a very long time.
