EDIT:
Judging from all the email alerts I keep getting even after a simple google search a while ago showed the correct solution on multiple sites and since people are too blind to follow simple instructions , this is how to fix this issue:
1) Download the beta win10 driver from Intel
2) Extract, don't run the **** Intel installer
3) Right click your adapter in device manager and click update driver and point to where you extracted the driver and it will update and fix the issue.
4) Its not exactly rocket science is it?
5) Google is your friend, don't be afraid to use it
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I also get the exact same issue and only just first experienced in the last two hours but its occurring regularly and my Surface Pro 3 is now extremely laggy. I wonder how many other people are experiencing this issue (and how many of them actually report
it to get Microsoft's attention). This is getting extremely frustrating.
I'm also running Windows 10, also have the Windows 8 thing in the error message. Not the first time a Surface Pro 3 update has broken my Surface (and guessing probably not the last either)