The program itself was installed originally; everytime the disk is put in, it comes up with "Modify"/"Remove"/"Repair" but after clicking any of these it doesn't do any, it comes up with "finished performing maintenance":
On the menu installed itself if you click "Scan" it states "theres no device detected" then the "TWAIIN" error, I can't actually do what you've advised as the computer itself is not letting me install or uninstall the software from the disk:
And when i attempted to open it via running it came up with this message:
Even though it is connected