Came across a situation, where we needed to increase the ccm cache size for only couple of workstations to accommodate an app install, however the option was disabled through the SCCM client settings. To quickly deal with the one off scenario like this, i was able to enable the change by simply modifying the below highlighted reg key value from “Partial” or “Disabled” to “Enabled“.

RegKey Path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SMS\Mobile Client\Configuration

Sub RegKey: CP Cache Options