First Time Login
If your IMATH account has been created before March, 1st 2014, you have to synchronize the Windows password for Windows 2012 before you can log in. This has to be done only once per account.
Follow the steps below in order to synchronize the password:
enter your user name and password for your IMATH account, and press Login
check the option Keep my old password and leave the fields New password and Retype new password empty.
press Set passoword
Once you finished above steps, your password has been synchornized and you can log into Windows 2012 using your IMATH account.