CALs (client access licenses) – Unlike HP ROK, CALS can be purchased any time, either included with your new server purchase or at a later date as a stand-alone option.
Replacing lost or damaged ROK media – Replacement media can be obtained directly from HP.Go to hp.com/go/wsdowngrade for complete information.
Obtaining Windows Server downgrades – Downgrades can be obtained directly from HP or the reseller partner. Customers may wish to request that their reseller obtain downgrades on their behalf. This is beneficial if the reseller will be installing both the new OS and the downgrade version prior to shipping the new server. Specific downgrade rights are included with HP ROK. Go to hp.com/go/wsdowngrade for complete information.