My computer is old too and running Windows XP. I run windows "CHKDSK" about once a month as well as "disk defrag". They help some. Sometimes I have to repair an installation of programs from "control panel" to make programs run correctly. Also, there are free "speed up my PC" programs available. One is called "Glary Utilities Free Edition" It works very well to correct PC issues. Log in to CNET.Com and look around. Sure you will back up and running on Fusion Cash soon.