I use Windows Live Mail  on my desktop, Windows 7,  and every so often I transfer files over as backup unto a laptop.

I had Windows live mail on the laptop, Windows XP,  but had a problem transferring the mail stuff over to it. I copied the mail folders but deleted the software from the Programs Folder in the hope of reinstalling it and then merging the new installaiton to my saved data folders. Well I cannot! Everything seems to install OK. When I go ctrl + Alt + Del sure enough it says WLMail is running but I can't see it. Also it is running in processes. When it seemed to install Ok I noticed it never got so far as to create a desktop icon etc. which usually happens when one installs new software. Looks like the installation process did not complete itself. I tried deleting everything using the Microsoft Fix It progam, the installation and uninstallation part, until blue in the face and tried over and over all day long even googling fruitlessly for answers but still nothing changed for me. Any ideas what the problem might be so I can fix it.