Was there any Comcast software installed on the computer?
If you used an ethernet connection with the Comcast modem, no software was needed. Comcast won't tell you that you don't need to use the disk. Ethernet modems are plug in and if activation is needed, call and they can do it over the phone.
The only time it is installed is if your Comcast modem used a USB connection and for that you do need the disk to install drivers.
However, you do mention using a cd. I'll do some digging on Comcast support pages and see if I find anything that would tell me what you may have done when using the CD.
Things like the Comcast toolbar and Comcast Desktop Doctor (which in my opinion are not needed) can be uninstalled if you used them. The disk also (or it did at one time) installs a Comcast branded IE.
Found it. (I'm skipping the first 3 steps which deal with connecting the ethernet cable)
4.Insert the Comcast High-Speed Internet Installation CD into your computer’s CD-ROM or DVD-ROM drive. The installation program should take about 15 minutes.
•During the installation process, you will be asked to accept the software license agreement and the Comcast Agreement for Residential Services
•The Installation Wizard will check to make sure your computer meets requirements for Comcast High-Speed Internet service. If so, the process with continue to configure and activate your account. Please make certain all other applications are closed when running the Comcast install software, so that Comcast may install all service attributes on your computer.
•You will be asked to create a user name and password. You will need this user name to access both email and the Comcast.net website. The Wizard will then finalize the settings and install Comcast support software.
Basically it activated your internet account with Comcast and registered your modem.
If support software was installed, it should be listed under Comcast in Add Remove. If you don't see it, it's probably not on your computer.
At any time while you had Comcast, did you ever reinstall Windows? If you did, it knocked out the support software and it's no longer on your computer.
You could also do a search for Comcast and see if it finds anything.
Edited by Queen-Evie, 01 February 2010 - 12:33 AM.