To access your pre-requisite test or test, you must be logged in to your EU Login account on the computer you will use for testing. Please keep in mind that you need full administrator rights on the computer or laptop you will use for testing; corporate-issued devices typically do not provide these privileges.

Nevertheless, you can access your EU Login account from multiple computers. However, regardless of which device you use, you must:

• enter your EU Login username and password, and
• complete the second authentication step using your registered second-factor authentication method. 

If your only second-factor authentication method is the ‘Trusted Platform’ on one device  (e.g. Windows Hello or Touch ID), you will only be able to sign in from that specific device. 

Therefore, we strongly recommend that you add at least one backup authentication method, for example:

• EU Login mobile app (recommended)
  You can install the app on your phone and use it to authenticate when signing in from another computer. For more information, please see: How to add a mobile device and EU login App.
• Security key (e.g. a USB key)
  If you already have one, you can also use it on different computers, provided they support it.

Your invitation letter contains your EU Login User ID, which is indicated at the top of the letter. 

If you are already logged in to EU Login with the correct User ID, open the TAO testing platform and click the white EU Login button to access the test environment. 

If you have problems accessing the EU Login account specified in your invitation letter, please contact the EU Login Helpdesk, which is best placed to assist with EU Login-related issues. For information on how to do so, consult the section “If you still cannot find a solution to your issue” towards the bottom of the EU Login common issues page.