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I was using Firefox and all of a sudden my machine froze. I couldn't move my mouse, and the keyboard stopped responding. The clock on the task bar also remained unchanged. Pressing Control Alt Delete didn't help. I had to unplugged my machine.
This problem started yesterday and has happened twice (once yesterday and once today). Every time it happened I was navigating on Firefox. I was on a legitimate site (microsoft, toshiba).
I ran a check disc, and didn't notice anything (but frankly I don't know what to look for anyway). Also ran sfc /scannow, and at the end of the scan I saw "Windows Resource Protection found corrupt files but was unable to fix some of them". So I followed http://support.microsoft.com/kb/928228 to analyze my logs, but the only entry that mentions repair are:
Repairing 0 components
Beginning Verify and Repair transaction
Repair complete
So it looks like nothing needs to be repaired. I also looked at the Event Viewer. I am not familiar with this tool so didn't know exactly what to look for, but found the following to be a bit suspicious:
Event ID: 7026
Task Category: None
Level: Error
Keywords: Classic
Description:
The following boot-start or system-start driver(s) failed to load:
Tosrfcom
Any suggestion would be very much appreciated. I will be using my machine for some online tests soon so I need to make sure that it's working fine. Thanks a lot!
System Info: Vista (SP2), Firefox 3.6.8
This problem only started yesterday, I haven't installed anything except virus definitions for my Anti-Malware programs (the programs themselves have been installed for many months).

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