I am getting repeated error messages from my CA stating it cannot write to the Certificate Services log file. This is causing my auto enrollment of certificates to fail. I don't even know where to go next. The disk has plenty of space remaining andthe permissions seem fine. I have usedmultiple search engines and come up with no hits whatsoever. The error is displayed below. There were a few errors that preceeded the start of this issue (noted below). Any assistance would be greatly appreciated.Application Event Log==============Source: CertSvcCategory: NoneEvent ID: 22Certificate Services could not process request (number) due to an error: Unable to write to the log file. 0xc80001fe (ESE: -510). The request was for DOMAIN\MACHINE$. Additional information: Error Parsing RequestThese Errors took place immediately before this issue started=======================================Source: ESENTCategory: GeneralEvent ID: 486certsrv.exe (1780) An attempt to move the file "C:\WINDOWS\system32\CertLog\edb.log" to "C:\WINDOWS\system32\CertLog\edb0042B.log" failed with system error 32 (0x00000020): "The process cannot access the file because it is being used by another process. ". The move file operation will fail with error -1032 (0xfffffbf8).-------------------Source: ESENTCategory: Logging/RecoveryEvent ID: 413certsrv.exe (1780) Unable to create a new logfile because the database cannot write to the log drive. The drive may be read-only, out of disk space, misconfigured, or corrupted. Error -1032.-------------------Source: ESENTCategory: Logging/RecoveryEvent ID: 492certsrv.exe (1780) The logfile sequence in "C:\WINDOWS\system32\CertLog\" has been halted due to a fatal error. No further updates are possible for the databases that use this logfile sequence. Please correct the problem and restart or restore from backup.

It sounds like you are possibly running out of sapce on the c:\ drive of the system or there is corruption. What is the state of your latest backup?Brian

As stated above I have plenty of drive space. I restarted the service in the hopes that possibly my anti-virus was interfering (after I excluded that folder from scans) and the problem has not reappeared. I should have tried that first. :)Thanks for the input.Tom

Yes, Like AD and Exchange, it is not recommended to run anti-virus engines against the Certificate Services Jet databaseBrian