Trados Studio update 18.1.4.6694

I updatedTrados Studio 2024 with update 18.1.4.6694 and now Trados 2024 seems to have disappeared from my computer entirely. 

There is just a desktop shortcut which when i open, runs throught the normal set up opening the small blue window, then just crashes and won't open. 

I have reset my license, downloaded the updated version and it still won't open.  I did the same for my MultiTerm 2022 which is working fine and will open. 

Any other ideas.  I'm mid deadline and it's ridiculous that it just will not open !

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