How to name/describe the Windows 7 Start Button?

You could ask them to press the windows button on the keyboard but that might cause a similar problem so why not tell them to press Ctrl+Esc on the keyboard?

I have heard some people call it the windows button now that it no longer has 'start' on it.

When you are working with people of this level of computer knowledge, I don't believe you'll be able to succintly describe the Windows Button if they can't follow your directions to look at 'the lower left with the windows logo on it'.

The other option would be to ask them press start on the keyboard, users may be more familiar with that term

It is to be called the Windows 7 Start Orb!

Since this seems to be a very un-techwise user. They probably have not changed the location of their taskbar, meaning that the Windows 7 Start Orb is ALWAYS in the BOTTOM LEFT CORNER.

Furthermore, depending on the theme installed in Windows 7, if Aero is enabled, it will be a colorful Orb. If the Basic theme is installed, it will still be an Orb. If classic is installed, it will say "Start".

Just tell your user to refer to the BOTTOM LEFT CORNER and click the COLORFUL LITTLE FLAG.