Event id 4656 audit failures on non existent drives - owstimer.exe

Hi

Does anyone know what is happening here?

Server 2012 with Sharepoint 2013.

Gets lots of 4656 audit failes and reports on drives like A;, D: e: F:

Now a: D: e: don't exist, and for F: the user is an admin on the server and has access to the drive.

Reported in owstimer.exe in SYNCHRONISATIOn - Readdata (or listDirectory)

=> How can i stop these errors from continuing ?

Thanks