Deleting C: drive

Use a drive scrubber to wipe over your data with 1's and 0's.  The data will never be accessible.

There are many to choose from.  All for free.

http://download.cnet.com/DriveScrubber/3000-2092_4-10215664.html

Thanks.
mug

Darik's Boot And Nuke is pretty good:

http://www.dban.org/

I need some software to download to be able to burn the software.

You have to use a wipe program. A simple deletion is not enough.

You can use a portable software, so you dont need to burn cds etc...
Otherwise install on the same disk. It will overwrite data you will delete anyway :)

An advanced shredding algorithms (Dod 5220-22.M, US Army, Peter Guttman) to securely wipe data.
PREFER MULTIPLE PASS (2 or more)

Some software you may try:
http://www.jetico.com/ (shareware)
http://www.thefreecountry.com/security/securedelete.shtml (free)
http://www.diskwipe.org/

I like DriveScrubber.  One advantage if you buy it ($30) is that it can be installed on your replacement laptop.  It has a utility that will scrub an individual file.  If this is a laptop computer from work, and you occasionally have personal information stored on it, you might like this feature, as it does a scrub on an individual file that you want to delete.  Just using Windows to delete the file only deletes the pointer to the file, not the file itself.  The file remains on the disk with the space allocated as available, but the space won't actually be overwritten until something else is stored there (maybe never).  Although I occasionally want to scrub a drive, I find that Drive Scrubber is most useful for the individual files.

Here's the link:

http://www.iolo.com/ds/3/?utm_source=google&utm_medium=cpc&utm_campaign=drive-scrubber-us-search&utm_term=drive%20scrubber&utm_content=drive-scrubber-us-search-drivescrubber-001&gclid=CJ2F0J-QtacCFYi8KgodHHGG_g

Remember to wipe "free space" as there can be hidden files that you delete days ago, and where not overwritten by newer files!