So this happened to me again this morning although it didn't occur yesterday.
The 1st item for today under the following section in Event Viewer is;
Windows Logs>Application
Time: 11:50:58, Level: Error, Source: ATIeRecord, General Details: ATI EEU Service event error, Event ID: 16387
Time: 11:51:11, Level: Information, Source: Security-SPP, General Details: Successfully scheduled Software Protection service for re-start at 2116-05-21T10:51:11Z. Reason: RulesEngine, Event ID: 16384
Time: 11:51:11, Level: Information, Source: Security-SPP, General Details: The Software Protection service has stopped, Event ID: 903
I then get 4 identical entries that correspond to the time of Winlogon with the following details;
Time: 11:51:28, Level: Information, Source: igfxCUIService1.0.0.0, General Details: The description for Event ID 0 from source igfxCUIService1.0.0.0 cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted, Event ID: 0
Windows Logs>System
Time: 11:50:56, Level: Information, Source: Kernel-General, General Details: The system time has changed to 2016-06-14T10:50:56.500000000Z from 2016-06-13T20:34:28.293110300Z. Change Reason: System time synchronized with the hardware clock, Event ID: 1
Time: 11:50:56, Level: Warning, Source: e1cexpress, General Details: Network link is disconnected, Event ID: 27
Time: 11:50:57, Level: Information, Source: Kernel-Boot, General Details: The firmware reported boot metrics, Event ID: 30
Time: 11:50:57, Level: Information, Source: Kernel-Boot, General Details: There are 0x1 boot options on this system, Event ID: 18
Time: 11:50:57, Level: Information, Source: Kernel-Boot, General Details: The bootmgr spent 0ms waiting for user input, Event ID: 32
Time: 11:50:57, Level: Information, Source: Kernel-Boot, General Details: The boot menu policy was 0x1, Event ID: 25
Time: 11:50:57, Level: Information, Source: Kernel-Boot, General Details: The boot type was 0x1, Event ID: 27
Time: 11:50:57, Level: Information, Source: BTHUSB, General Details: Windows cannot store Bluetooth authentication codes (link keys) on the local adapter. Bluetooth keyboards might not work in the system BIOS during start-up, Event ID: 18
Time: 11:50:59, Level: Information, Source: Power-Troubleshooter, General Details: The system has returned from a low power state. Sleep Time: 2016-06-13T20:34:26.510994400Z Wake Time: 2016-06-14T10:50:57.079550500Z Wake Source: Unknown, Event ID: 1
Time: 11:51:00, Level: Information, Source: e1cexpress, General Details: Network link has been established at 1Gbps full duplex, Event ID: 32
<Here is where I think the delay occurs in processing the login credentials>
Time: 11:51:28, Level: Information, Source: Winlogon, General Details: User Log-on Notification for Customer Experience Improvement Program, Event ID: 7001
So my thoughts are these which I wonder if someone more knowledgeable is able to shed some light on please:
Is the ATIeRecord source something to do with my AMD drivers, perhaps this is trying to ping home to check for updated drivers but can't at that time because the network link is down?
Is this just a symptom of using a Microsoft Account to login as it doesn't occur every time so I'm wondering is it connected to handshaking with Microsoft's servers?
Now there are also some networking options in the BIOS but I have never enabled them as I thought these were for non Windows OS purposes. I shall have to check on the BIOS options and report back on these.
I don't have integrated graphics enabled in the BIOS but Win10 did do a driver update relating to this a couple of weeks ago. It may have removed my AMD driver too but I have since reinstalled that as there was a more up to date driver available.
I also have secure and fast boot enabled, unsure if these could be related to the issue.