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ESENT error code 439 & 490, how do fix SBS 2008 error ?

adamfh asked
Last Modified: 2012-05-11
Would anyone please educate me on what these errors mean, and how to correct?
thank you.

ESENT      439      6/14/2011 1:06:51 AM      1
Event Details:    
wuaueng.dll (516) SUS20ClientDataStore: Unable to write a shadowed header for file C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk. Error -1032.

ESENT      490      6/14/2011 1:06:51 AM      1
Event Details:    
wuaueng.dll (516) SUS20ClientDataStore: An attempt to open the file "C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk" for read / write access failed with system error 32 (0x00000020): "The process cannot access the file because it is being used by another process. ". The open file operation will fail with error -1032 (0xfffffbf8).
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