When you delete a file, Windows takes the easy path. It doesn’t overwrite or blank out the file’s data. Instead, the OS zeroes out the FAT values for the clusters containing the data and changes the first letter of the file’s name in the disk directory.
To actually delete a file so that it is unrecoverable, you will need to overwrite it with random 1's and 0's. Many programs will do this, spybot search and destroy has an option to securely delete files. It's available free on the internet.
*Note: A previous answer stated that you may use the defragmentation utility in Windows to delete a file, while this is true, defragging will overwrite the file, it takes a long time and isn't really practical.
russianspy1234 answered Wednesday March 21 2007, 7:01 pm: its damn near impossible to do it completely and permenantly. first do whats been said, delete and then clear recycling bin. however, the information for the file is still there. then go to Start>Programs>accesories>system tools>disk defragmenter and run it.
if your computer is old, and you have never run this, it can take upwords of a few hours. now, this has various other benifits, besides just getting rid of the info for one file. it will clear up lots of hardrive space for you, so if you need to hide the fact that you are deleting a file, just say you are doing it for that. it will also make your computer run faster. you should probably run it around once every other month. [ russianspy1234's advice column | Ask russianspy1234 A Question ]
blair_ok answered Wednesday March 21 2007, 4:45 pm: First you right click on it and click delete.
Then it will take it to the recycling bin on your computer. Go to the recycling bin and look at the deleted items. Right click on the item you want deleted and click delete. It will say something like "do you want this permantly deleted off your computer" press ok or yes. Which ever one it says. [ blair_ok's advice column | Ask blair_ok A Question ]
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