@PabloGavirai-5410 Can you share the document which you have followed to install GPU driver extension?
If you have not followed any specific document, I would suggest you to use this article and some of the document mentioned here.
In case you have followed above document, please share at which step you are facing issues. Most likely the drivers which are using are not certified for Azure VM and causing certificate errors. Please check the drivers documented in azure website and it should work without any signature issue.
Hope this helps.
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