Attention: Are you looking for info about the cause of "Remote Procedure Call (RPC)", initiated by NT AuthoritySystem error message that shuts down Windows (you might also see svchost.exe error occasionally)? Here is Microsoft's security patch for Windows XP that fixes this dangerous vulnerability allowing anyone to execute any program on your computer across the Internet. Here it is for Windows 2000. If you have a slower connection, you may not be able to download it before your computer shuts down. In this case, look at other options below or use another computer to download it and then copy it over and run on your computer. Here is more info from Microsoft. Another workaround for this virus is going to Start->Control Panel->Administrative Tools->Services->Remote Procedure Call (RPC)->Recovery Tab and choosing "Take No Action" for all three choices. This disables DCOM RPC. If you have a problem with Windows shutting down before you can complete these tasks, you'll need to disconnect from the ...