Error: your trace missed kernel mode events, most likely due to excessive context switches or I/O. Please collect another ...

Error: your trace missed kernel mode events, most likely due to excessive context switches or I/O.
Please collect another trace after you have shut down any unnecessary applications.
Alternatively you can change the ETW buffer settings, 
for more information please refer to http://go.microsoft.com/fwlink/?LinkId=160687.