Question : Donate computers - erase hard drives?

I want to Donate (10) computers to a charity and need a quick way to erase hard drives. What is a good approach to erase these hard drives?

Answer : Donate computers - erase hard drives?

Scheduled tasks can run at the logon screen but it also depends on the program you are launching. We use Defrag as a scheduled task that runs on computers at night.

Here is the link to a VBScript to defrag all machines on your network.
http://www.dougknox.com/utility/scripts_desc/defrag_all.htm

Here is a script for Disk Cleanup.
http://www.visualbasicscript.com/m66923.aspx

Here is another link that also illustrates how to create a Scheduled Task via script.
http://blogs.technet.com/b/heyscriptingguy/archive/2004/09/22/how-can-i-manage-scheduled-tasks-using-scripts.aspx

I have also had success with PSEXEC by Sysinternals
http://technet.microsoft.com/en-us/sysinternals/default.aspx

Hope this helps~!