I have an HP desktop with XP installed. We acquired this computer 2nd hand at a flea market and has no installation discs.We would like to upgrade to Windows 7. This computer also has Photoshop CS. If we upgrade, this will wipe out all programs not originally installed on computer. How can we save Photoshop to re-install after 7 goes in? Maybe a second hard drive? Someone mentioned making a "ghost". If so how would this be done? We are not very knowledgeable so we will need any instruction "spelled out" for us.
Thank you in advance.