Windows Installer error MSI

Hi there everyone. I wonder if you can help me. I removed the Corel Photoshop and Corel Photo organizer from my laptop because it was shareware. When i restarted Windows a pop-up window with "Windows Installer" appeared asking for the disk which I do not have. On the Window it says "Sonic Update Manager" and in the window it says "The feature you are trying to use is on a CD-ROM or other removable disk that is not available." "Insert the "Sonic Update Manager" disk and click on OK". Underneath the message it's got a drop down menu that says "1" with the buttons OK or CANCEL on the right hand side. When I click on OK or CANCEL i get another error pop-up saying "An installation package for the product Sonic Update Manager cannot be found. Try the installation again using a valid copy of the installation package UM.MSI". I tried using the 2 application disc's that came with my laptop but it did not find the required file so I decided to remove the Sonic Update Manager from the ADD/REMOVE programs in control panel and restarted Windows. BUT THEN !! Another problem.. The Windows Installer popped back up with "Sonic Applicator" with the same error message underneath. Is there anyway I can remove the pop-up from displaying? It's really annoying. I tried to do Windows System Restore but this did not work.

Cheers!

Mike