How to remove Microsoft Mouse and Keyboard Center?

Hi, I was viewing event log and I noticed that there was some kind of error with the keyboard. The recommended action was to remove the driver and to reinstall it. So, that's what I did. I have a Microsoft Comfort Curve 2000 keyboard. Once, I removed the driver, I then attempted to reinstall the driver which is bundled in a package called Microsoft Mouse and Keyboard Center. After downloading, and extracting, an error prompts: "This software version is already installed on this system. To re-install this software, you must remove it first, and then run Setup again from the installation media. For information about removing a program, see Windows Help." So, naturally the first thing I did was search for an uninstall. Hmm, nothing in Add or Remove programs, nothing in the Start Menu folder. So, the only other thing I could think to do was to delete the files out of the directory in C:\, which I did. But still, after trying to reinstall this driver I am getting this same error. Please tell me how to remove this software from my computer, so I can reinstall it, so that I can be using the appropriate driver for my keyboard instead of "HID Keyboard Device." Thank you.