I have an external hard drive so to store my photography. I noticed recently that it is almost full. It has always been about 1/3 full. I am a NOVICE compared to you computer people, and need to go through and delete/delete/delete, but honestly DON'T know where to start. I guess I need a list of what NOT to delete. I did delete the DLL program for I have that in my actual computer which is a HP p6877 / Processor AMD II 645 Processor 3.10 GHz 64 bit Windows home Premium. What else can I share that "might" help? Thank you, will check back tomorrow. ~~ NICOLE RAMIREZ