I've recently started getting a suspicious window appear in chrome which suggests chrome is out of date even though it isn't.
The window isn't part of chrome and can be closed using altf4 when it has focus.
I've not found anything in the process explorer which relates to the window.
I've scanned with both Windows Defender and Malwarebytes. Neither found anything.
What is it? And how might I go about removing it?
Google Chrome 59.0.3071.115 (Official Build) (64-bit) (cohort: Stable)
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