User manual .
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1. of the volume whose free space is currently being wiped e The current block blocks are files the application writes to your volume they are temporary and deleted after wiping has completed successfully e The current pass of the block See Preferences if applicable e The value being used to overwrite the data see Preferences e The number of remaining blocks yet to be made e The total progress The time it takes to wipe a volume depends on the size of the volume the speed of your Mac and amount of RAM and how many passes you specify Obviously 8 passes will take eight times longer than 1 pass A quick test showed that an iMac with 2 66GHz CPU 4GB DDR3 RAM would wipe 517GB in 3 hours 22 minutes using one pass So three passes would take about 10 hours When wiping the free space on a volume you will be asked to select a folder in which this app can store temporary files You must have read write permissions for the chosen folder The files created by this app will be cleaned up after the free space has been successfully wiped or the process is aborted using the Stop button In the event the temporary files created by the application are not deleted select the drives above and then click the Clean up button You will then regain any lost disk space If no temporary files are found nothing will happen if there are temporary files deleted you will be told how many were deleted Before wiping the free space on a driv2. WipeFS User Manual Contents Introduction Preferences Contact 800 Codelnventors WipeFS Select the volumes you want to wipe the free space on and click the Start button The application is currently configured for 1 pass over data Volume Size Free lad 650GB 595 25 GB 471 94 GB M 2TB 1 862 04 GB 371 92 GB erae Webcam 297 29 GB 180 56 GB wns s Wiping free space on 2TB 1 862 04 GB Segment 1 of 185 Overwriting with byte 78 4Eh Segment progress 43 Overall progress 0 0 86 GB processed Start Stop Preferences Introduction WipeFS erases unused space on hard disks USB flash drives etc to prevent the recovery of deleted files Any data which still resides in that unused space albeit marked free can be properly and securely deleted by overwriting it As you may know simply deleting a file does not actually delete the content of the file Instead the space that file occupied on the disk is simply marked as being free and may exist for a long time until another file is allocated that space or part of it Simply check the drive s you want to work on the number of passes you want to perform see Preferences and click the Start button You can use the Refresh button to manually refresh the drive list if you mount dismount any volumes while the application is running When wiping begins you are shown the following information e The name
3. e you should e Close other applications using the volume s before wiping begins e Do not use the volume s while wiping is in progress e Consider emptying the Trash prior to wiping You can ignore any warnings about low disk space while wiping is in progress You should not empty the recycle bin while wiping is in progress Disclaimer The author of this application software cannot be held responsible for any loss of data you might incur You use this application at your own risk Proper use of the application cannot result in unwanted data loss Preferences Passes when wiping free space 1 35 A lst pass data is overwritten with a byte value of 0 0 hex 2nd pass data is overwritten with a byte value of 255 FF hex 3rd pass data is overwritten with a random byte value between 1 and 254 The first and second passes ensure that all bit values are changed at least once Five passes is the standard for sensitive data eight passes is recommended for highly sensitive data MV Always use random byte values 0 255 regardless of pass number Display volume sizes in GB 0 M Show a message when completed _ Speak message v Play a sound when wiping has completed Glass 7 OK _ Cancel Passes As shown in the screenshot above the number of passes can range from 1 to 35 The value used to overwrite the free space depends on the pass 1st pass data is overwritten with a byte value of O 0 hex 2nd pass data is o
4. verwritten with a byte value of 255 FF hex 3rd pass data is overwritten with a random byte value between 1 and 254 The first and second passes ensure that all bit values are changed at least once One pass will overwrite the data securely You can use higher passes for peace of mind Always use random byte values 0 255 regardless of pass number If you don t want to follow the default pattern for writing byte values 1st pass 0 2nd pass 255 3rd pass random 1 to 254 you can check this option to write a random byte value between O and 255 for every pass Display volume sizes in Determine how the size of volumes is shown in the drive list You can select TB terabytes GB gigabytes MB megabytes KB kilobytes or bytes Show a message when wiping has completed When checked a message dialog will appear when wiping has finished and you can choose to have your Mac speak the message if it has the facility to do so Play a sound when wiping has completed When checked the chosen sound will be played Contact If you have any questions about this product please contact us Email support codeinventors com Or visit our website http www codeinventors com
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