Hi, 

I've been getting this error more frequently "DDriverLogs: Failed to write logs because of the error Access to the path 'Microsoft.Exchange.Store.Worker.exe__2015090815-2.LOG' is denied" I've put AV exclusions recommended by MS for Exchange. The exchange server is 2013 CU3. Has anyone else encounter these errors?

Thank you

Hi nostar,

According to the error information, it seems that you don't have proper permission to access to the file. 

Try to find the path which store these logs file, and check if the permission correct .

By default, these files are stored in the following path:

%ExchangeInstallPath%Logging\ADDriver

and with the following default permissions :

Administrator: Full Control

System: Full Control

Network Service: Full Control

In addition, I also recommend you upgrade the exchange server to latest CU9.

Best regards,