I have an issue with Windows Task Manager in an XP environment. Yeah, I know, upgrade or get a new PC. This machine is actually a cast-off, from someone else who got a new tower, but I was hoping to use it as a dual boot machine and make it last longer. Anyway, I have an image to share, it's odd; not only is the usage very high, but there is this curious pattern of high usage followed by low usage, up and down like a yo-yo, very weird. Any ideas what it is? I've tried all sorts of remedies to no avail. Here is the image. .