How to wipe a previously used HD

Soldato
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Have an external 500GB drive im selling on, now it was just a storage for vids pics and stuff, but would like to kill it as best as I can, is their anything good for free that would do this?
 
Read that formatting isnt 100%, so was unsure of that.
A full format in Windows 7 will zero-fill the drive, and then that data is *gone*. Irretrievably, irrevocably, absolutely.

You can use one of the utilities which overwrite multiple times with random data if you're truly paranoid, but it's not necessary and really just a waste of time.
 
A full format in Windows 7 will zero-fill the drive, and then that data is *gone*. Irretrievably, irrevocably, absolutely.

You can use one of the utilities which overwrite multiple times with random data if you're truly paranoid, but it's not necessary and really just a waste of time.

Ahh right...well ive jsut left it on a older XP machine to do a full format, so will leave it at that...thanks!
 
Not sure if this helps but get a large file on your pc (picture/video) of around 1Gb (more if possible) then copy and paste it in one folder untill the hdard drive is full up then format. do this 4-5 times and most of any old data will be gone/unreadable. Its a lot cheaper than the prograsm you get online that are supposed to fully wipe hard drives -_- .
 
Ahh right...well ive jsut left it on a older XP machine to do a full format, so will leave it at that...thanks!
ah, that's different (sorry) - unlike Win7 and Vista, XP's full format *doesn't* zero-fill the drive, so you need to look at a third-party utility. There's plenty of apps which do this, such as Eraser as mentioned above, or the free version of Active Killdisk.

My previous advice still stands though, a single-pass overwrite will put your data beyond any possible hope of recovery, so don't bother with all the time-consuming "extra-super-secure" options.
 
Yes sorry, my new machine is busy with me trying to get stuff back onto it so was leaving the much older Xp machine to get on with this.

I take it a Single Pass overite is one of teh options in those programmes.

Never had to do this before...feel like a right numpty., free version of killdisk should do it.
 
Yes sorry, my new machine is busy with me trying to get stuff back onto it so was leaving the much older Xp machine to get on with this.

I take it a Single Pass overite is one of teh options in those programmes.

Never had to do this before...feel like a right numpty., free version of killdisk should do it.
IIRC the free version of Killdisk only give you the option of a single-pass overwrite, but since it's all you need anyway it should do you fine.

DBAN as the others have suggested is very good, but it's slightly less convenient as it runs off a boot disc, so your PC will effectively be out of action during the process. If it's not being run on your main rig, it doesn't matter so much I guess. :)
 
I just zero'd my 500GB disk the other day it took 2hours on one pass. I used a tool from the manufacture; in my case Western Digital ( data life guard )
 
Well killdisk is taking about 8 hrs, should be ready in teh morning!...and thats the quick sweep!
 
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