SDL Update message- TRADOSSTUDIO-5.0.5.mps

Openging SDL Trados Studio 2017, a window opens advising about an updating to be installed. Installation doesn't work. I've tried many times, even on my SDL Account, where I can't find it.

Installation from SDL window  always stops for overtiming and a message appears advising that file TradosStudio-5.0.5.mps would be available in Temporary archive of my pc, but I can't find it.

Do I need this updating, or can I go on easily without it?

 

Thank you very much.

 

Patrizia