"windows cannot back one or more private keys because the CSP does not support key export" while backing up CA database and private key...

Hi all;

When I want to backup my CA database and private key, the following error message appears:

windows cannot back one or more private keys because the CSP does not support key export. Do you want to continue and backup only the private keys that can be exported?

I am using Windows Server 2008 R2 Enterprise and the following is the output of running "certutil.exe –getreg ca\csp\*" command:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CertSvc\Configuration\SKICertificate\csp:

Values:
  ProviderType             REG_DWORD = 1
  Provider                 REG_SZ = Microsoft Strong Cryptographic Provider
  HashAlgorithm            REG_DWORD = 8004 (32772)
    CALG_SHA1
    Algorithm Class: 0x8000(4) ALG_CLASS_HASH
    Algorithm Type: 0x0(0) ALG_TYPE_ANY
    Algorithm Sub-id: 0x4(4) ALG_SID_SHA1

  MachineKeyset            REG_DWORD = 1
CertUtil: -getreg command completed successfully.

Any ideas?

Thanks