There're a lot (10 pages worth) of problem reports about this here: http://answers.microsoft.com/en-us/search/search?SearchTerm=KB3081424+microsoft&IsSuggestedTerm=true&tab=&CurrentScope.ForumName=Windows&CurrentScope.Filter=windows_10&ContentTypeScope=#/Windows/windows_10//2
I've got this update installed on 4 Windows 10 systems both 32 and 64 bit on 2 desktops, one with an Intel E7500 CPU and the other with an AMD Phenom-II X3, and I guess I've been lucky. I didn't run into any problems installing it. Based on the above link I can see a lot of folks did though.
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