There are two ways to wipe free space using BleachBit. The small blue buttons above the start button are for shutting down the computer or exiting the program on completion.īleachBit is a free and well-known utility for cleaning junk files from your computer. There’s probably no need to change them unless you know what you are doing. Three extra options of clean MFT, clean USN Journal, and overwrite slack space are enabled by default. They are 1 pass random data, 3 pass DOD 5220.22-M, 7 pass German standard, 7 pass extended DOD 5220.22-M, and the famous 35 pass Gutmann method. When the “Start deletion” button is pressed you will be presented with the wipe methods on offer. Press the “Free space deletion” button in the main window and click on the required drive to highlight it. The free version doesn’t appear to be feature limited but it does pop up a nag window when any task has been completed. These include erasing junk files, registry cleaning, file/folder erasing, drive and partition erasing, and drive free space cleaning. Secure Eraser is free for non commercial use and it has a number of useful options to securely erase data. The random data is written to the free space once, which should be fine for most normal drives and situations. The fifth option of clearing file name traces from the MFT is not selected by default and the program notes it could take some time. The options to empty the recycle bin, clear free space in the MFT (Master File Table), and wipe the cluster tips are enabled by default. The version we used offered two of their other tools during install, so make sure you pay attention to the install process. Install the program, then you only need to select the drive that you want to process from the drop down, the other options can be left alone if you are not sure. Moo0 Anti-Recovery is a free and very easy to use program that cleans the empty spaces on a drive with random data. Make sure to press the back button once the process has finished or you’ll start the wipe again.
Click the Next button and then Start.įile Shredder supports 5 types of wiping algorithm which are a single pass of zeros, 2 passes, DOD 5220.22-M (3 passes), 7 passes, and the paranoid Gutmann 35 passes. A new window will open where you can select the disk to wipe and the algorithm to use. To wipe the free disk space, run File Shredder and click on “Shred Free Disk Space” at the left pane.
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