Hi,

In the event viewer we are seeing a warning for "The speed of Processor 3 in group 0 is being limited by system firmware" & "The speed of processor 2 in group 0 is being limited by system firmware.

We have just applied the October 2014 updates but are experiencing unexplained system restarts. Have read that this could be related to power options but the event is occuring from every restart, full battery charge and plugged into the powered dock. The system restarts occur randomly.

We are also experiencing a black screen at domain joined user logon which is only resolved by initiating the power button which then prompts to shutdown.