it did that to me too with my R11. I just hit cancel. Closed out restarted and went back to Dell and reinstalled the bios update ... try that
I got SA (SupportAssist) and it showed me a list of drivers I could install. I pressed install all, and it did, but when it went to the one named BIOS, it continued to only say installing for a very long time? Please help me.
Aurora R11, SA, BIOS update not installing