Disable Reserved Storage: DISM.exe /Online /Set-ReservedStorageState /State:DisabledĪs we noted above, Reserve storage is simply a block of storage used for Windows 10 services.Enable Reserved Storage: DISM.exe /Online /Set-ReservedStorageState /State:Enabled.Here is the list of the other commands you can use: In Command Prompt (cmd), users can type ‘DISM.exe /Online /Get-ReservedStorageState’ without quotes to check the status of the Reserved Storage.