I had a 2nd matching hard drive installed by Dell when I purchased the Optiplex GX620 with XP Pro. The XP OS is as fully updated as it could be. lol
That D drive has been slightly used, but my C drive is failing after roughly 6 years of use. I already replaced that Dell with a Win 8 touch screen laptop. The Dell unit has been extensively cleaned of viruses and malware, and will never be used again on the Internet or WiFi. It will be my off-line computer for confidential stuff. I'll just use USB for backing it up, and also use a spare printer with it.
While my C drive is still able, I think I need to copy a full image of it to the D drive and then have the choice of booting from C or D at start up. I really don't want to put my hands inside the computer to swap or re designate the drives.
I heard that I could take an image of C:\ and restore it as C:\ to the 2nd HDD (I've already backed it up).
It seems like that would be my first step, but I need advice to tell me how to do that, how to alternately boot between the two, and maybe alternative suggestions. Or, if my software works properly on the current D drive then I won't need to go back to C ever again.