D.C.,
It's the McAfee update log which is created by the Instant Updater program. Occasionally, I've seen some glitches where the file is placed wherever a RIGHT click scan is done. Which version of Virus Scan, scan engine and virus defintions are you running?? (RIGHT click on the McAfee shield, or red "M" in the lower right corner, choose "About Virus Scan" and please post back with the version, scan engine version and virus defintion version,)
The log can be created when running Instant Updater. It shouldn't be on your desktop, but instead should be placed in the McAfee folders such as "C:\program files\mcafee\mcafee shared components\instant updater". The file can safely be deleted.
Hope this helps.
Grif
An icon suddenly appeared on my desktop titled "RUpdate log". Is this something I inadvertently requested?

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