T440S screen suddenly turns blue-grey and I had to force it to power off

Question

(Updated with Event Viewer logs. Not sure if they are relevant. See the end of the message, right before the picture)
This computer is less than 1 year old and has already given me several problems. This is the the most recent one. Basically, the screen suddenly turns dark blue (or is it grey?) and the cursor also disappears from the screen and the computer becomes unresponsive (See the attached picture below). And I had to press and hold the power button to force the computer to shut down and then to power on again.
This is not the blue screen of death that people talk about (as there is no warning text), although the BSOD has happened to me a couple of times as well
This problem has happened twice so far. Now, in both cases, I was editing and saving fairly large WORD documents (Word version 2013; About 600 pages of document and Size at 0.6 mb). The document was being saved, and suddenly this happened.
Mine is Windows 7 with all the latest updates installed and the memory is 8 GB. 
Anyone can give some insights on what this is and why it happened?
Thanks!
=====================
I am posting below the two events from Events Viewer that were generated at the same time the problem occurred. Even assuming they are the cause, I still do not understand why the errors led to the observed problem, that is, the screen going blue and computer becoming unresponsive).
Log Name:      Application
Source:        Microsoft-Windows-LoadPerf
Date:          26/10/2014 2:20:16 PM
Event ID:      3011
Task Category: None
Level:         Error
Keywords:      
User:          SYSTEM
Computer:     
Description:
Unloading the performance counter strings for service WmiApRpl (WmiApRpl) failed. The first DWORD in the Data section contains the error code.
Log Name:      Application
Source:        Microsoft-Windows-LoadPerf
Date:          26/10/2014 2:20:16 PM
Event ID:      3012
Task Category: None
Level:         Error
Keywords:      
User:          SYSTEM
Computer:     
Description:
The performance strings in the Performance registry value is corrupted when process Performance extension counter provider. The BaseIndex value from the Performance registry is the first DWORD in the Data section, LastCounter value is the second DWORD in the Data section, and LastHelp value is the third DWORD in the Data section.

Answer 1

Sorry, I was too quick to respond to your reply. I checked the Event Viewer that you talked about. Around the time of Error, there were the following two 'Administrative Events' that seem relevant:
Log Name:      Application
Source:        Microsoft-Windows-LoadPerf
Date:          26/10/2014 2:20:16 PM
Event ID:      3011
Task Category: None
Level:         Error
Keywords:      
User:          SYSTEM
Computer:     
Description:
Unloading the performance counter strings for service WmiApRpl (WmiApRpl) failed. The first DWORD in the Data section contains the error code.
Log Name:      Application
Source:        Microsoft-Windows-LoadPerf
Date:          26/10/2014 2:20:16 PM
Event ID:      3012
Task Category: None
Level:         Error
Keywords:      
User:          SYSTEM
Computer:     
Description:
The performance strings in the Performance registry value is corrupted when process Performance extension counter provider. The BaseIndex value from the Performance registry is the first DWORD in the Data section, LastCounter value is the second DWORD in the Data section, and LastHelp value is the third DWORD in the Data section.