There is no sign of malware in the logs. However, the Event log shows a bad block on your hard disk.
We need to confirm this, and then take corrective action.
First step is a scan to confirm/deny.....
From the Deskop:
Start -> Run -> chkdsk (then press enter)
In the Command Prompt window, enter 'chkdsk C:' (without the quotes) and press 'Enter'
When finished, close the Command Prompt window.
Next step is to get the chkdsk log and post it in this thread.
Open the Control Panel, double click on "Adminstrative Tools", double click on the "Event Viewer" icon, then click on "Application". In the "Source" column, look for the "Winlogon" item. Double click it and you should see the results of your Chkdsk.
Copy those results and paste them into this thread.--
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Microsoft MVP/Consumer Security 2005-2011
Gladiator Security Forum