Am I wasting my time if I do a low level disk format on a hard drive (i.e. write 000000000 to it) before reimaging it?
Was thinking it may offer a slight performance increase...
It won't make any performance difference at all. The only reason for wiping a drive in this manner is privacy.
It definitely won't make read/write speeds faster. It'll just make it incredibly hard to recover anything from it.Was thinking it may offer a slight performance increase...
Thats not a low level format any way just data wiping.
DBAN - Darik's Boot And Nuke | Hard Drive Disk Wipe
If you want to ensure all your data is securely wiped
If you just want to format it to start again then a low level format will do this ( if you do a full low level format instead of a quick one ) then that will also check the hard drive for any bad sectors etc and try to repair them if possible
It would make data from the drive slightly more difficult to recover - but if you are just talking about a standard classroom machine; then just re-imaging it will have the same results.
Thanks, I was just trying to make sure certain rooms benefit from my new image this year since some of the new PC bids ain't happening now!!
Start DOS prompt, type debug then on the next line g=c800:5 and press enter
Now if you know what that does you've either been in IT a long time or are a true uber geek
I didn't think you could low level format modern drives unless you have access to expensive test beds in hard drive factories, doesn't a modern drive remap any attempt to low level it into a standard format?
One pass of zeros is a lot more effective at destroying data than many people will have you believe; once you zero fill the drive it takes a mad professor with an electron microscope to get the data off. These multiple pattern multiple pass wiping tools are a waste of time most of the time, although admittedly I used the highest setting on dban when I wiped our bursar's old machine last month... it took two days
A zero fill will get rid of any bad blocks caused by software - sometimes blocks get marked as bad by windows when they're not, there's nothing wrong with the hardware. This usually happens through unclean reboots, that sort of thing.
Zero filling utilities are also good for getting rid of screwy hard disk problems like the windows installer not getting rid of grub after you've had linux on there... for this you only need to do the very beginning of the disk, but it's quite effective. ImageX problems can sometimes be fixed by doing this... not that I think anyone should use ImageX! As a general rule, if I'm getting screwy problems with a hard drive I usually end up doing a zero fill. It kinda gives you a clean slate and it doesn't take too long really.
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