03-02-2018 06:42 AM
Re: XPS 8700, A12 BIOS, sluggish performance
As you can see from the earlier post, going "back" to an older version was not possible.
"I did the same thing and it won't let me downgrade to A11."
All you can do is await a new BIOS release.
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Run the PC pre-Windows diagnostics
Where do I find my Dell PC Service Tag or Express service code?
Out of Warranty Support