That's a pretty hard question to answer, but completing this will put us in the right direction:List programs that can be removed using Windows 'Add or Remove'
This utility "List Installed Programs"
will provide a list of installed programs. It is found half way down the page. Click on the little arrow and then the download icon that is on the new window that opens up. You can download the script and run it from your hard disk or run it without downloading.
When asked to enter the PC details - leave it blank and click OK. Ask to view the results and copy the Notepad list. Paste it in a reply to this thread.