Our support team can use TeamViewer which allows us to diagnose and fix problems without you being present.
You will need to install TeamViewer: download link.
TeamViewer will then generate a code and password that you will need to send back. This will allow us to fix the problem without you being present.
If there is a screenlock, you can either disable the screenlock or give us the screenlock password.
Open a terminal with the root user logged on.
Send Partek the TeamViewer log-in (from #2).