Right, this is going to sound a little weird, but bear with me!
First, a very quick background. You have an NVidia card in your system. When NVidia wants to update the software for the card and any drivers, they create their own user account called UpdatesUser. The computer reboots into this user, and performs the update. When it reboots again, the system boots back into the normal account. You don't normally see this UpdatesUser account.
Here is what NVidia says about it:
Purpose of the 'UpdatusUser' Account
Beginning with driver version 188.97 for Optimus notebooks, the driver creates a special Windows user account for security purposes, named UpdatusUser.1 This account is a dedicated and write-restricted user account that runs a service for updating Optimus profiles through the NVIDIA server. The service cannot be run without this account. On Optimus notebooks, this account is created regardless of whether NVIDIA Update is installed. When NVIDIA Update is installed, the additional driver update, application profile and SLI profile update capabilities become available.
Beginning with Release 270 drivers for desktops, when NVIDIA Update is installed, the software creates the UpdatusUser account. This account runs the NVIDIA Update service for updating application profiles through the NVIDIA server. Again, the service cannot be run without this account.
The reason I'm wittering on about this, is because of the following errors in your logs:
03/11/2013 02:06:28 PM
The nvUpdatusService service was unable to log on as .\UpdatusUser with the currently configured password due to the following error:
Logon failure: the specified account password has expired.
To ensure that the service is configured properly, use the Services snap-in in Microsoft Management Console (MMC).
03/11/2013 02:06:28 PM
The NVIDIA Update Service Daemon service failed to start due to the following error:
The service did not start due to a logon failure.
3 minutes after this error, the system is shut down:
03/11/2013 02:09:58 PM
The previous system shutdown at 9:08:53 AM on 11/3/2013 was unexpected.
Before I go about fixing this, can you provide the specs of this PC to me, specifically if this is a laptop or a desktop, and the graphics card information.
If you don't know this information, please download and install Speccy by Piriform - Speccy - Standard
. Open the program, wait for it to gather all of its information, and click
File --> Save Snapshot
Choose somewhere to save the file and press OK. Then zip the file and upload it to your next post.
Any questions or issues, let me know