Over the past couple of months I have been getting issues with my windows 8.1 PC, which until then had been trouble free.

The first issue I started experiencing was that randomly when logging in it would give me a default profile, logging out and in would solve this issue although when it has happened I have restarted a drive image to ensure no lasting effects. This has happened 2 or 3 times over the past few months.

However yesterday I got 'The Group Policy Client service failed the sign-in The universal unique identifier (UUID) type is not supported'. Again I have restored a drive image but something must have changed, ie corruption, M$ patch, A/V etc to cause these events to start occurring.

My A/V is Avast and I will be posting the same information on their boards but I am at a loss for ideas as to the cause or solution.