Once approved for VDI access, you can use the "HTML" method to access it (see video below for walkthrough)
Depending on your asssingment, go to staff-vdi.greececsd.org or secure-vdi.greececsd.org using the Chrome browser
Click on "VM Horizon HTML Access" on the lower right of the VM Horizon screen.
For Username, enter staff\first.last (or your full GCSD email address) and your WINDOWS network password then click the green Login button
Click on one of the icons which signify pools of VDI machines. Each pool has a different collection of Windows programs. You may be granted access to more than one pool based on your needs
You should now be be in a live VDI Windows session in a browser tab.
You can expand the view to full screen mode by clicking on the browser settings (3 vertical dots in the upper right --> Zoom --> [ ]). Hover in the upper center of the screen and click the x to exit full screen mode.
Use the pull out drawer on the left of the screen to access options such as entering a control-alt-delete and logging out (see video below).