Autopilot info hash is time-salted?

Hi AlexPawlak,

The representation which you see is an encoded xml structure of the device which includes also a dateteime value and a special hardware data hash (OfflineDeviceId). That's why the "hash" gathered with the powershell script is always different every time when gathered.

To decode the information you can use the oa3tool.exe from the Windows ADK (https://docs.microsoft.com/en-us/windows-hardware/get-started/adk-install) 

it looks like this:

<?xml version="1.0"?>

<HardwareReport>

        <HardwareInventory>

                <p n="ToolVersion" v="3" />

                <p n="HardwareInventoryVersion" v="131" />

                <p n="ToolBuild" v="10.0.16299.15" />

                <p n="OSType" v="FullOS" />

                <p n="OsCpuArchitecture" v="x64" />

                <p n="OsBuild" v="10.0.16299.15" />

                <p n="OsSystemTime" v="2017-11-02T15:26:32Z" />

                <p n="OsLocalTime" v="2017-11-03T21:26:32+30:00" />

                <p n="ProcessorModel" v="Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz" />

                <p n="ProcessorPackages" v="1" />

                <p n="ProcessorThreads" v="2" />

                <p n="ProcessorCores" v="2" />

                <p n="ProcessorHyperThreading" v="false" />

                <p n="SmbiosRamArrayCount" v="1" />

                <p n="SmbiosRamSlots" v="1" />

                <p n="SmbiosRamErrorCorrection" v="None" />

                <p n="SmbiosRamMaximumCapacity" v="2048" />

                <p n="TotalPhysicalRAM" v="18446744073709551615" />

                <p n="SmbiosFirmwareVendor" v="Microsoft Corporation" />

                <p n="SmbiosSystemManufacturer" v="Microsoft Corporation" />

                <p n="SmbiosSystemProductName" v="Virtual Machine" />

                <p n="SmbiosSystemSerialNumber" v="4677-3739-9388-5445-1471-5011-93" />

                <p n="SmbiosUuid" v="2423a5f2-0d8b-4e61-8aca-5be1eb53208c" />

                <p n="SmbiosSkuNumber" v="None" />

                <p n="SmbiosSystemFamily" v="Virtual Machine" />

                <p n="SmbiosSystemVersion" v="Hyper-V UEFI Release v2.0" />

                <p n="SmbiosBoardManufacturer" v="Microsoft Corporation" />

                <p n="SmbiosBoardProduct" v="Virtual Machine" />

                <p n="SmbiosBoardVersion" v="Hyper-V UEFI Release v2.0" />

                <p n="ChassisType" v="0x03" />

                <p n="InternalDiskCount" v="1" />

                <p n="DeviceNumber" v="0" />

                <p n="PrimaryDiskTotalCapacity" v="136" />

                <p n="PrimaryDiskType" v="HDD" />

                <p n="DiskSerialNumber" v="|Virtual Disk    |Msft    " />

                <p n="OpticalDiskDriveType" v="true" />

                <p n="PhysicalMedium" v="Unspecified" />

                <p n="MacAddress" v="00:11:22:01:42:11" />

                <p n="DisplayResolutionHorizontal" v="1024" />

                <p n="DisplayResolutionVertical" v="768" />

                <p n="DisplaySizePhysicalH" v="0" />

                <p n="DisplaySizePhysicalY " v="0" />

                <p n="DigitizerSupportID" v="IntegratedTouch, IntegratedPen, MultiInput" />

                <p n="PowerPlatformRole" v="Desktop" />

                <p n="Status" v="0x00000000" />

                <p n="OfflineDeviceIdType" v="UEFI_VARIABLE_RANDOMSEED" />

                <p n="OfflineDeviceId" v="MEyq3Ar1JdB6AVxl……..J1P8gPegxts=" />

                <p n="DiskSSNKernel" v="|Virtual Disk    |Msft    " />

        </HardwareInventory>

</HardwareReport>

best,

Oliver