I was right clicking and then selecting shortcut, then after that it would palce the shortcut icon but start the winrar installer.
However I found out that it ran the process IRSetup.exe. So i completely uninstalled Winrar, deleted all remenants of it and still it was able to start the installer. As well as this i researced IRSetup and found it to be in the temp folder so also deleted this and it was still able to install.
So finally i just gave up and formatted and its fine now.