My computer keeps trying to use windows installer to install sonic update manager. When it tries to install, I get a message similar to "resource unavailable". And then computer tells me to browse for a different file path. I cannot seem to stop the windows installer. It also is causing my computer to lock up when I am on web site and attempt to get emails, the system locks up. I then have to use task manager to stop it from running. I have also gone into control panel to "Remove Programs" and a dialogue box tells me it cannot be removed because it is in the process of being installed. Sonic Update Manager is installed on my computer.