Cancel CHKDK at bootup

Hi Guys,

I have done this before and can't remember how to do it ...

I have just scheduled a CHKDSK to run at the next reboot of one of our servers, I now want to cancel it. I know that I have to change the bootexecute in the registry, and I even know that I need to change the value to ' autocheck autochk * '

but how do I physically change the value, when I double click the reg value to edit it I get the edit binary value dialogue box come up ( http://www.smithcomputersystems.co.uk/images/screenie.jpg )

how do I alter the value properly, as when I remove the switches after autochk* and close the window the data value shows as a load of random asci characters. What part do I have to alter/remove ?

Thanks

Matt