I noticed recently that Windows 10 was using a high amount of CPU.
Checking Task Manager, could see this was coming from Runtime Broker.exe
A bit of Binging around and I found this solution posted in the Microsoft forums.
I’m sure Microsoft will patch this soon, but this should get you by until then.
I haven’t had this problem since this post, but it did crop up again in Insider Preview Build 14291.rs1_release.160314-2254.
Repeating these steps, toggling the “Show me tips about Windows” on the off again seems to have fixed it.
I am, however, also seeing high WMI Provider Host cpu usage. It’s constant around 5% on 3 virtual CPUs.