System state backup fails

Hi,

I've a Windows Server 2008 R2 which host an Oracle database.
After upgrading Oracle to the latest version Windows Server Backups fails with error: "System Writer not found in backup".
Application Event Log show Event ID 517 with description "Error code 2155347997 (Operation aborted before completion)".
"vsstrace" shows no errors.
"diskshadow list writers" shows something interesting:

	* WRITER "System Writer"
		- ID processo di scrittura   = {e8132975-6f93-4464-a53e-1050253ae220}
		- ID istanza processo di scrittura = {0d5d5490-9019-4370-9659-f27b92c3e603}
		- Supporto eventi di ripristino = FALSE
		- Condizioni di ripristino processo di scrittura = VSS_WRE_NEVER
		- Metodo di ripristino = VSS_RME_RESTORE_AT_REBOOT_IF_CANNOT_REPLACE
		- Necessità di riavvio dopo il ripristino = TRUE
		- File esclusi:
		+ Componente "System Writer:\System Files"
			- Nome: System Files
			- Percorso logico: 
			- Percorso completo: \System Files
			- Didascalia: System Files
			- Tipo: VSS_CT_FILEGROUP [2]
			- Selezionabile: FALSE
			- Di primo livello: TRUE
			- Notifica al termine del backup: FALSE
			- Percorsi interessati dal componente:
				- C:\ProgramData\Microsoft\Crypto
				- C:\Windows\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\SoftwareProtectionPlatform
				...
				- c:\oracle\product\11.2.0\dbhome_2\bin
				- d:\oracle\product\11.2.0\dbhome_2\bin

It looks to me Oracle registered "d:\oracle\product\11.2.0\dbhome_2\bin" as System Component.
But that folder does not exist. D: is actually the CD-ROM drive...

Can I remove "d:\oracle\product\11.2.0\dbhome_2\bin" from the System State file list?

The official position seems to be "no, reinstall the application" which I wuold really like to avoid...

Regards,
  Corrado