Latest MSI Az PS MSI installed date is incorrect while version is accurate

[benoithamet]

Description

I'm using Intune to deploy the Az PS modules using the MSI but the August MSI version is reporting as installed but the install date is incorrect
Using Control Panel on Windows, we can see the MSI has been installed (version) but the install date is incorrect, showing the install date of the July version

Issue script & Debug output

Incorrect installation date

Environment data

Windows 11 25H2, Az PS deployed using the MSI with Intune

Module versions

Get-Module Az* return nothing

Error output

No output error

[x-engineering-agent]

Hi Benoit HAMET (@benoithamet), thanks for the report! Before we can investigate, could you please share:

• The exact Az PowerShell MSI version number(s) involved (e.g. from the MSI filename or msiexec product info) for both the July and August releases you mention.
• The exact installed date shown in Control Panel/Programs and Features versus the date you expected (i.e. the actual install date of the August MSI).
• Output of Get-Module -ListAvailable Az* (or the actual PowerShell module install path) so we can confirm which module version is present on disk, since Get-Module Az* alone only lists imported modules and returned nothing here.
• Whether this metadata is read from Get-Package/Get-WmiObject Win32_Product/Control Panel specifically, or from another source.

This will help us confirm whether the incorrect date comes from the MSI installer/packaging metadata (build pipeline) or from a specific Az module, and reproduce the issue.

I'll pick this up automatically once you reply.

[benoithamet]

Obviously I cannot provide the July one as was expecting to work as always (I think July was 16.1.0.XXXX)
Ausgust MSI version is 16.2.0.41027
You have the screenshot from the control panel showing the version and installed date

Get-Module -ListAvailable Az*

Directory: C:\Program Files\WindowsPowerShell\Modules

ModuleType Version Name ExportedCommands

---

Script 5.5.2 Az.Accounts {Disable-AzDataCollection, Disable-AzContextAutosave, Enable-AzDataCollection, Enable-AzContextAutosave...}
Script 3.0.0 Az.Advisor {Disable-AzAdvisorRecommendation, Enable-AzAdvisorRecommendation, Get-AzAdvisorConfiguration, Get-AzAdvisorRecommendation...}
Script 7.2.1 Az.Aks {Disable-AzAksAddOn, Enable-AzAksAddOn, Get-AzAksCluster, Get-AzAksNodePool...}
Script 1.3.0 Az.AnalysisServices {Add-AzAnalysisServicesAccount, Export-AzAnalysisServicesInstanceLog, Get-AzAnalysisServicesServer, New-AzAnalysisServicesFirewallConfig...}
Script 4.2.0 Az.ApiManagement {Add-AzApiManagementApiToGateway, Add-AzApiManagementApiToProduct, Add-AzApiManagementProductToGroup, Add-AzApiManagementRegion...}
Script 2.0.1 Az.App {Disable-AzContainerAppRevision, Enable-AzContainerAppRevision, Get-AzContainerApp, Get-AzContainerAppAuthConfig...}
Script 2.2.0 Az.AppConfiguration {Clear-AzAppConfigurationDeletedStore, Get-AzAppConfigurationDeletedStore, Get-AzAppConfigurationKey, Get-AzAppConfigurationKeyValue...}
Script 3.0.0 Az.ApplicationInsights {Get-AzApplicationInsights, Get-AzApplicationInsightsApiKey, Get-AzApplicationInsightsContinuousExport, Get-AzApplicationInsightsLinkedStorageAccount...}
Script 2.0.0 Az.ArcResourceBridge {Get-AzArcResourceBridge, Get-AzArcResourceBridgeApplianceCredential, Get-AzArcResourceBridgeCredential, Get-AzArcResourceBridgeTelemetryConfig...}
Script 1.0.0 Az.ArizeAI {Get-AzArizeAIOrganization, New-AzArizeAIOrganization, Remove-AzArizeAIOrganization, Update-AzArizeAIOrganization}
Script 3.1.0 Az.Attestation {Add-AzAttestationPolicySigner, Get-AzAttestationPolicy, Get-AzAttestationPolicySigners, Remove-AzAttestationPolicySigner...}
Script 2.0.0 Az.Automanage {Get-AzAutomanageBestPractice, Get-AzAutomanageConfigProfile, Get-AzAutomanageConfigProfileAssignment, Get-AzAutomanageConfigProfileHciAssignment...}
Script 1.12.1 Az.Automation {Export-AzAutomationDscConfiguration, Export-AzAutomationDscNodeReportContent, Export-AzAutomationRunbook, Get-AzAutomationAccount...}
Script 4.1.1 Az.Batch {Disable-AzBatchAutoScale, Disable-AzBatchComputeNodeScheduling, Disable-AzBatchJob, Disable-AzBatchJobSchedule...}
Script 2.3.0 Az.Billing {Get-AzBillingAccount, Get-AzBillingInvoice, Get-AzBillingPeriod, Get-AzBillingProfile...}
Script 6.1.0 Az.Cdn {Add-AzCdnEdgeActionAttachment, Clear-AzCdnEndpointContent, Clear-AzFrontDoorCdnEndpointContent, Deploy-AzCdnEdgeActionVersionCode...}
Script 3.0.0 Az.CloudService {Get-AzCloudService, Get-AzCloudServiceInstanceView, Get-AzCloudServiceNetworkInterface, Get-AzCloudServiceOSFamily...}
Script 1.17.1 Az.CognitiveServices {Add-AzCognitiveServicesAccountNetworkRule, Get-AzCognitiveServicesAccount, Get-AzCognitiveServicesAccountCommitmentPlan, Get-AzCognitiveServicesAccountDeployment...}
Script 11.8.0 Az.Compute {Add-AzGalleryInVMAccessControlProfileVersionRulesIdentity, Add-AzGalleryInVMAccessControlProfileVersionRulesPrivilege, Add-AzGalleryInVMAccessControlProfileVersionRulesRole, Add-AzGalleryInVMAcce...
Script 2.0.0 Az.ConfidentialLedger {Get-AzConfidentialLedger, New-AzConfidentialLedger, New-AzConfidentialLedgerAADBasedSecurityPrincipalObject, New-AzConfidentialLedgerCertBasedSecurityPrincipalObject...}
Script 1.1.1 Az.ConnectedMachine {Connect-AzConnectedMachine, Get-AzConnectedExtensionMetadata, Get-AzConnectedLicense, Get-AzConnectedLicenseProfile...}
Script 5.0.0 Az.ContainerInstance {Add-AzContainerInstanceOutput, Get-AzContainerGroup, Get-AzContainerInstanceCachedImage, Get-AzContainerInstanceCapability...}
Script 5.1.0 Az.ContainerRegistry {Connect-AzContainerRegistry, Get-AzContainerRegistryManifest, Get-AzContainerRegistryRepository, Get-AzContainerRegistryTag...}
Script 1.21.1 Az.CosmosDB {Get-AzCosmosDBAccount, Get-AzCosmosDBAccountKey, Get-AzCosmosDBCassandraKeyspace, Get-AzCosmosDBCassandraKeyspaceThroughput...}
Script 1.3.0 Az.DataBoxEdge {Get-AzDataBoxEdgeBandwidthSchedule, Get-AzDataBoxEdgeDevice, Get-AzDataBoxEdgeJob, Get-AzDataBoxEdgeOrder...}
Script 2.0.0 Az.Databricks {Get-AzDatabricksAccessConnector, Get-AzDatabricksOutboundNetworkDependenciesEndpoint, Get-AzDatabricksVNetPeering, Get-AzDatabricksWorkspace...}
Script 1.20.1 Az.DataFactory {Add-AzDataFactoryV2DataFlowDebugSessionPackage, Add-AzDataFactoryV2TriggerSubscription, Get-AzDataFactory, Get-AzDataFactoryActivityWindow...}
Script 1.2.0 Az.DataLakeAnalytics {Add-AzDataLakeAnalyticsDataSource, Add-AzDataLakeAnalyticsFirewallRule, Get-AzDataLakeAnalyticsAccount, Get-AzDataLakeAnalyticsCatalogItem...}
Script 1.6.0 Az.DataLakeStore {Add-AzDataLakeStoreFirewallRule, Add-AzDataLakeStoreItemContent, Add-AzDataLakeStoreTrustedIdProvider, Add-AzDataLakeStoreVirtualNetworkRule...}
Script 1.1.1 Az.DataMigration {Get-AzDataMigrationProject, Get-AzDataMigrationService, Get-AzDataMigrationTask, Invoke-AzDataMigrationCommand...}
Script 3.0.1 Az.DataProtection {Backup-AzDataProtectionBackupInstanceAdhoc, Edit-AzDataProtectionPolicyRetentionRuleClientObject, Edit-AzDataProtectionPolicyTagClientObject, Edit-AzDataProtectionPolicyTriggerClientObject...}
Script 1.2.0 Az.DataShare {Get-AzDataShare, Get-AzDataShareAccount, Get-AzDataShareDataSet, Get-AzDataShareDataSetMapping...}
Script 1.0.0 Az.DataTransfer {Approve-AzDataTransferConnection, Deny-AzDataTransferConnection, Disable-AzDataTransferConnection, Disable-AzDataTransferFlow...}
Script 6.0.0 Az.DesktopVirtualization {Disconnect-AzWvdUserSession, Expand-AzWvdMsixImage, Get-AzWvdAppAttachPackage, Get-AzWvdApplication...}
Script 3.0.0 Az.DevCenter {Approve-AzDevCenterUserDevBox, Build-AzDevCenterAdminProjectCatalogImageDefinitionImage, Connect-AzDevCenterAdminCatalog, Connect-AzDevCenterAdminProjectCatalog...}
Script 1.0.0 Az.DeviceRegistry {Get-AzDeviceRegistryAsset, Get-AzDeviceRegistryAssetEndpointProfile, Get-AzDeviceRegistryBillingContainer, Get-AzDeviceRegistryNamespace...}
Script 1.2.0 Az.DevTestLabs {Get-AzDtlAllowedVMSizesPolicy, Get-AzDtlAutoShutdownPolicy, Get-AzDtlAutoStartPolicy, Get-AzDtlVMsPerLabPolicy...}
Script 2.2.0 Az.Dns {Add-AzDnsRecordConfig, Get-AzDnsRecordSet, Get-AzDnsZone, New-AzDnsRecordConfig...}
Script 2.0.0 Az.DnsResolver {Get-AzDnsForwardingRuleset, Get-AzDnsForwardingRulesetForwardingRule, Get-AzDnsForwardingRulesetVirtualNetworkLink, Get-AzDnsResolver...}
Script 1.7.0 Az.ElasticSan {Add-AzElasticSanVolumeGroupNetworkRule, Get-AzElasticSan, Get-AzElasticSanSkuList, Get-AzElasticSanVolume...}
Script 2.2.0 Az.EventGrid {Disable-AzEventGridPartnerTopic, Enable-AzEventGridPartnerDestination, Enable-AzEventGridPartnerTopic, Get-AzEventGridCaCertificate...}
Script 5.6.0 Az.EventHub {New-AzEventHubAuthorizationRuleSASToken, Approve-AzEventHubPrivateEndpointConnection, Deny-AzEventHubPrivateEndpointConnection, Get-AzEventHub...}
Script 1.0.0 Az.Fabric {Get-AzFabricCapacity, Get-AzFabricCapacitySku, New-AzFabricCapacity, Remove-AzFabricCapacity...}
Script 1.0.0 Az.FileShare {Get-AzFileShare, Get-AzFileShareLimit, Get-AzFileShareProvisioningRecommendation, Get-AzFileShareSnapshot...}
Script 1.0.0 Az.FirmwareAnalysis {Get-AzFirmwareAnalysisBinaryHardening, Get-AzFirmwareAnalysisCryptoCertificate, Get-AzFirmwareAnalysisCryptoKey, Get-AzFirmwareAnalysisCve...}
Script 2.3.0 Az.FrontDoor {Disable-AzFrontDoorCustomDomainHttps, Enable-AzFrontDoorCustomDomainHttps, Get-AzFrontDoor, Get-AzFrontDoorFrontendEndpoint...}
Script 5.0.1 Az.Functions {Get-AzFunctionApp, Get-AzFunctionAppAvailableLocation, Get-AzFunctionAppFlexConsumptionRuntime, Get-AzFunctionAppPlan...}
Script 6.5.0 Az.HDInsight {Add-AzHDInsightClusterIdentity, Add-AzHDInsightComponentVersion, Add-AzHDInsightConfigValue, Add-AzHDInsightMetastore...}
Script 3.0.0 Az.HealthcareApis {Get-AzHealthcareApisService, Get-AzHealthcareApisWorkspace, Get-AzHealthcareDicomService, Get-AzHealthcareFhirDestination...}
Script 1.0.0 Az.HealthDataAIServices {Get-AzDeidService, New-AzDeidService, Remove-AzDeidService, Update-AzDeidService}
Script 2.9.1 Az.IotHub {Add-AzIotHubCertificate, Add-AzIotHubConfiguration, Add-AzIotHubDeployment, Add-AzIotHubDevice...}
Script 6.6.0 Az.KeyVault {Add-AzKeyVaultCertificate, Add-AzKeyVaultCertificateContact, Add-AzKeyVaultKey, Add-AzKeyVaultManagedStorageAccount...}
Script 3.0.0 Az.Kusto {Add-AzKustoClusterCalloutPolicy, Add-AzKustoClusterLanguageExtension, Add-AzKustoDatabasePrincipal, Get-AzKustoAttachedDatabaseConfiguration...}
Script 1.0.0 Az.LambdaTest {Get-AzLambdaTestOrganization, New-AzLambdaTestOrganization, Remove-AzLambdaTestOrganization, Update-AzLambdaTestOrganization}
Script 2.0.0 Az.LoadTesting {Get-AzLoad, New-AzLoad, Remove-AzLoad, Update-AzLoad}
Script 1.7.0 Az.LogicApp {Get-AzIntegrationAccount, Get-AzIntegrationAccountAgreement, Get-AzIntegrationAccountAssembly, Get-AzIntegrationAccountBatchConfiguration...}
Script 1.3.0 Az.MachineLearning {Add-AzMlWebServiceRegionalProperty, Export-AzMlWebService, Get-AzMlCommitmentAssociation, Get-AzMlCommitmentPlan...}
Script 2.0.0 Az.MachineLearningServices {Get-AzMLServiceQuota, Get-AzMLServiceUsage, Get-AzMLServiceVMSize, Get-AzMLWorkspace...}
Script 1.6.0 Az.Maintenance {Get-AzApplyUpdate, Get-AzConfigurationAssignment, Get-AzMaintenanceConfiguration, Get-AzMaintenancePublicConfiguration...}
Script 2.0.0 Az.ManagedServiceIdentity {Get-AzFederatedIdentityCredential, Get-AzSystemAssignedIdentity, Get-AzUserAssignedIdentity, Get-AzUserAssignedIdentityAssociatedResource...}
Script 4.0.0 Az.ManagedServices {Get-AzManagedServicesAssignment, Get-AzManagedServicesDefinition, Get-AzManagedServicesMarketplaceDefinition, New-AzManagedServicesAssignment...}
Script 2.2.0 Az.MarketplaceOrdering {Get-AzMarketplaceTerms, Invoke-AzMarketplaceSignTerms, Set-AzMarketplaceTerms, Stop-AzMarketplaceTerms}
Script 3.0.0 Az.Migrate {Get-AzMigrateDiscoveredServer, Get-AzMigrateJob, Get-AzMigrateLocalJob, Get-AzMigrateLocalReplicationFabric...}
Script 8.0.0 Az.Monitor {Add-AzLogProfile, Add-AzMetricAlertRule, Add-AzMetricAlertRuleV2, Add-AzWebtestAlertRule...}
Script 2.0.0 Az.MySql {Get-AzMySqlFlexibleServer, Get-AzMySqlFlexibleServerAdvancedThreatProtectionSetting, Get-AzMySqlFlexibleServerConfiguration, Get-AzMySqlFlexibleServerConnectionString...}
Script 1.4.0 Az.NetAppFiles {Approve-AzNetAppFilesReplication, Get-AzNetAppFilesAccount, Get-AzNetAppFilesActiveDirectory, Get-AzNetAppFilesBackup...}
Script 8.1.0 Az.Network {Add-AzApplicationGatewayAuthenticationCertificate, Add-AzApplicationGatewayBackendAddressPool, Add-AzApplicationGatewayBackendHttpSetting, Add-AzApplicationGatewayBackendSetting...}
Script 3.0.0 Az.NetworkCloud {Deploy-AzNetworkCloudCluster, Disable-AzNetworkCloudStorageApplianceRemoteVendorManagement, Enable-AzNetworkCloudStorageApplianceRemoteVendorManagement, Get-AzNetworkCloudAgentPool...}
Script 2.0.0 Az.Nginx {Get-AzNginxCertificate, Get-AzNginxConfiguration, Get-AzNginxDeployment, Invoke-AzNginxAnalysisConfiguration...}
Script 1.3.0 Az.NotificationHubs {Get-AzNotificationHub, Get-AzNotificationHubAuthorizationRule, Get-AzNotificationHubListKey, Get-AzNotificationHubPNSCredential...}
Script 3.4.1 Az.OperationalInsights {Disable-AzOperationalInsightsIISLogCollection, Disable-AzOperationalInsightsLinuxCustomLogCollection, Disable-AzOperationalInsightsLinuxPerformanceCollection, Disable-AzOperationalInsightsLinuxSy...
Script 2.0.0 Az.Oracle {Add-AzOracleCloudVMClusterVM, Get-AzOracleAutonomousDatabase, Get-AzOracleAutonomousDatabaseBackup, Get-AzOracleAutonomousDatabaseCharacterSet...}
Script 2.0.0 Az.PolicyInsights {Get-AzPolicyAttestation, Get-AzPolicyEvent, Get-AzPolicyMetadata, Get-AzPolicyRemediation...}
Script 2.2.0 Az.PowerBIEmbedded {Get-AzPowerBIEmbeddedCapacity, New-AzPowerBIEmbeddedCapacity, Remove-AzPowerBIEmbeddedCapacity, Resume-AzPowerBIEmbeddedCapacity...}
Script 1.3.0 Az.PrivateDns {Add-AzPrivateDnsRecordConfig, Get-AzPrivateDnsRecordSet, Get-AzPrivateDnsVirtualNetworkLink, Get-AzPrivateDnsZone...}
Script 7.14.0 Az.RecoveryServices {Add-AzRecoveryServicesAsrReplicationProtectedItemDisk, Backup-AzRecoveryServicesBackupItem, Copy-AzRecoveryServicesVault, Disable-AzRecoveryServicesBackupAutoProtection...}
Script 1.12.0 Az.RedisCache {Export-AzRedisCache, Get-AzRedisCache, Get-AzRedisCacheFirewallRule, Get-AzRedisCacheKey...}
Script 2.0.0 Az.RedisEnterpriseCache {Export-AzRedisEnterpriseCache, Get-AzRedisEnterpriseCache, Get-AzRedisEnterpriseCacheAccessPolicyAssignment, Get-AzRedisEnterpriseCacheDatabase...}
Script 3.0.0 Az.Relay {Get-AzRelayAuthorizationRule, Get-AzRelayHybridConnection, Get-AzRelayKey, Get-AzRelayNamespace...}
Script 1.3.0 Az.ResourceGraph {Search-AzGraph, Get-AzResourceGraphQuery, New-AzResourceGraphQuery, Remove-AzResourceGraphQuery...}
Script 2.0.0 Az.ResourceMover {Add-AzResourceMoverMoveResource, Get-AzResourceMoverMoveCollection, Get-AzResourceMoverMoveResource, Get-AzResourceMoverRequiredForResources...}
Script 10.1.0 Az.Resources {Export-AzResourceGroup, Export-AzTemplateSpec, Get-AzDenyAssignment, Get-AzDeployment...}
Script 1.9.0 Az.Security {Add-AzSecurityAdaptiveNetworkHardening, Add-AzSecuritySqlVulnerabilityAssessmentBaseline, Confirm-AzSecurityAutomation, Disable-AzIotSecurityAnalyticsAggregatedAlert...}
Script 4.0.0 Az.SecurityInsights {Get-AzSentinelAlertRule, Get-AzSentinelAlertRuleAction, Get-AzSentinelAlertRuleTemplate, Get-AzSentinelAutomationRule...}
Script 4.3.0 Az.ServiceBus {New-AzServiceBusAuthorizationRuleSASToken, Test-AzServiceBusNameAvailability, Approve-AzServiceBusPrivateEndpointConnection, Complete-AzServiceBusMigration...}
Script 5.2.0 Az.ServiceFabric {Add-AzServiceFabricClientCertificate, Add-AzServiceFabricManagedClusterClientCertificate, Add-AzServiceFabricManagedClusterNetworkSecurityRule, Add-AzServiceFabricManagedNodeTypeVMExtension...}
Script 3.0.0 Az.SignalR {Add-AzSignalRNetworkIpRule, Get-AzSignalR, Get-AzSignalRCustomCertificate, Get-AzSignalRCustomDomain...}
Script 7.0.0 Az.Sql {Add-AzSqlDatabaseToFailoverGroup, Add-AzSqlElasticJobStep, Add-AzSqlElasticJobTarget, Add-AzSqlInstanceKeyVaultKey...}
Script 3.0.0 Az.SqlVirtualMachine {Assert-AzSqlVMEntraAuth, Get-AzAvailabilityGroupListener, Get-AzSqlVM, Get-AzSqlVMGroup...}
Script 3.0.0 Az.StackHCI {Add-AzStackHCIVMAttestation, Disable-AzStackHCIAttestation, Disable-AzStackHCIRemoteSupport, Enable-AzStackHCIAttestation...}
Script 2.0.0 Az.StackHCIVM {Add-AzStackHCIVMVirtualMachineDataDisk, Add-AzStackHCIVMVirtualMachineNetworkInterface, Get-AzStackHCIVMImage, Get-AzStackHCIVMLogicalNetwork...}
Script 9.7.2 Az.Storage {Add-AzRmStorageContainerLegalHold, Add-AzStorageAccountManagementPolicyAction, Add-AzStorageAccountNetworkRule, Close-AzStorageFileHandle...}
Script 2.0.0 Az.StorageAction {Get-AzStorageActionTask, Get-AzStorageActionTaskAssignment, Get-AzStorageActionTasksReport, Invoke-AzStorageActionTaskPreviewAction...}
Script 1.0.0 Az.StorageDiscovery {Get-AzStorageDiscoveryWorkspace, New-AzStorageDiscoveryScopeObject, New-AzStorageDiscoveryWorkspace, Remove-AzStorageDiscoveryWorkspace...}
Script 2.1.0 Az.StorageMover {Get-AzStorageMover, Get-AzStorageMoverAgent, Get-AzStorageMoverConnection, Get-AzStorageMoverEndpoint...}
Script 2.6.0 Az.StorageSync {Get-AzStorageSyncCloudEndpoint, Get-AzStorageSyncGroup, Get-AzStorageSyncServer, Get-AzStorageSyncServerEndpoint...}
Script 3.0.0 Az.StreamAnalytics {Get-AzStreamAnalyticsCluster, Get-AzStreamAnalyticsClusterStreamingJob, Get-AzStreamAnalyticsDefaultFunctionDefinition, Get-AzStreamAnalyticsFunction...}
Script 2.1.0 Az.Support {Get-AzSupportChatTranscript, Get-AzSupportChatTranscriptsNoSubscription, Get-AzSupportCommunication, Get-AzSupportCommunicationsNoSubscription...}
Script 3.3.0 Az.Synapse {Add-AzSynapseDataFlowDebugSessionPackage, Add-AzSynapseTriggerSubscription, Clear-AzSynapseSqlPoolVulnerabilityAssessmentRuleBaseline, Convert-AzSynapseSqlPoolVulnerabilityAssessmentScan...}
Script 1.4.0 Az.TrafficManager {Add-AzTrafficManagerCustomHeaderToEndpoint, Add-AzTrafficManagerCustomHeaderToProfile, Add-AzTrafficManagerEndpointConfig, Add-AzTrafficManagerExpectedStatusCodeRange...}
Script 4.0.0 Az.Websites {Add-AzWebAppAccessRestrictionRule, Add-AzWebAppTrafficRouting, Edit-AzWebAppBackupConfiguration, Get-AzAppServiceEnvironment...}
Script 2.0.0 Az.Workloads {Get-AzWorkloadsMonitor, Get-AzWorkloadsProviderInstance, Get-AzWorkloadsSapApplicationInstance, Get-AzWorkloadsSapCentralInstance...}

[x-engineering-agent]

Thanks for the additional details Benoit HAMET (@benoithamet). To pin down whether this is a WiX/MSI packaging issue (e.g. a stable Component GUID preventing Windows Installer from refreshing the recorded install date on upgrade) versus something else, could you confirm:

• The exact registry value showing the incorrect date (e.g. HKLM\...\Uninstall\{ProductCode}\InstallDate) and what value you'd expect it to show
• Whether the issue also reproduces on a clean machine with only the August MSI installed (not upgraded from July), to confirm whether it's specific to in-place upgrades
• The exact prior (July) MSI product version for comparison
• Whether Get-InstalledModule Az / Get-Package Az report the correct 16.2.0 version, to confirm this is purely a display/metadata issue and not a partial/failed installation

I'll pick this up automatically once you reply.

[benoithamet]

I'm sorry but I don't have clean machine which did not have previous Az PS MSI installed - going to take quite a bit of time to do this
As said I don't have neither the exact July version as MSI is pushed by Intune as mandatory for the specific devices
Registry keys
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{49E06217-9AF8-467E-8C8B-C261B4D96593}
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{49E06217-9AF8-467E-8C8B-C261B4D96593}]
"AuthorizedCDFPrefix"=""
"Comments"=""
"Contact"=""
"DisplayVersion"="16.2.0.41027"
"HelpLink"=""
"HelpTelephone"=""
"InstallDate"="20260807"
"InstallLocation"=""
"InstallSource"="C:\WINDOWS\system32\config\systemprofile\AppData\Local\mdm\"
"ModifyPath"=hex(2):4d,00,73,00,69,00,45,00,78,00,65,00,63,00,2e,00,65,00,78,
00,65,00,20,00,2f,00,58,00,7b,00,34,00,39,00,45,00,30,00,36,00,32,00,31,00,
37,00,2d,00,39,00,41,00,46,00,38,00,2d,00,34,00,36,00,37,00,45,00,2d,00,38,
00,43,00,38,00,42,00,2d,00,43,00,32,00,36,00,31,00,42,00,34,00,44,00,39,00,
36,00,35,00,39,00,33,00,7d,00,00,00
"NoModify"=dword:00000001
"Publisher"="Microsoft Corporation"
"Readme"=""
"Size"=""
"EstimatedSize"=dword:00130e64
"UninstallString"=hex(2):4d,00,73,00,69,00,45,00,78,00,65,00,63,00,2e,00,65,00,
78,00,65,00,20,00,2f,00,58,00,7b,00,34,00,39,00,45,00,30,00,36,00,32,00,31,
00,37,00,2d,00,39,00,41,00,46,00,38,00,2d,00,34,00,36,00,37,00,45,00,2d,00,
38,00,43,00,38,00,42,00,2d,00,43,00,32,00,36,00,31,00,42,00,34,00,44,00,39,
00,36,00,35,00,39,00,33,00,7d,00,00,00
"URLInfoAbout"=""
"URLUpdateInfo"=""
"VersionMajor"=dword:00000010
"VersionMinor"=dword:00000002
"WindowsInstaller"=dword:00000001
"Version"=dword:10020000
"Language"=dword:00000409
"DisplayName"="Microsoft Azure PowerShell - August 2026"

[x-engineering-agent]

Bug Analysis

Observed: After upgrading the Az PowerShell MSI via Intune (e.g. 16.1.x -> 16.2.0.41027), Windows Add/Remove Programs and the HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{49E06217-9AF8-467E-8C8B-C261B4D96593} registry key report the correct new DisplayVersion, but InstallDate still shows the date of the previous (July) installation instead of the actual upgrade date.

Expected: InstallDate should reflect the date the current version was actually installed/upgraded.

Affected source: setup/azurecmd.wxs (the WiX installer definition for the Az PowerShell MSI). Product Id="*" combined with <MajorUpgrade AllowSameVersionUpgrades="yes" .../> controls how the Windows Installer engine treats a version bump. Investigate whether RemoveExistingProducts is scheduled such that Windows Installer treats this as a proper major-upgrade product-code swap (new InstallDate) versus a reinstall/patch of the same product row (which retains the original InstallDate). Likely causes to check: the RemoveExistingProducts schedule relative to InstallExecute/InstallFinalize, whether the product code truly changes between builds, and whether REINSTALLMODE is being forced anywhere in the Intune/MSI invocation that would cause Windows Installer to treat this as a repair instead of an upgrade.

Repro context: Windows 11 25H2, Az PowerShell MSI deployed via Intune as a mandatory app. Reported in #30092.

Suggested fix: Adjust setup/azurecmd.wxs (and/or setup/generate.ps1 if it manipulates ProductVersion/ProductCode) so a version upgrade always results in Windows Installer recording a fresh InstallDate for the upgraded product, while preserving the existing AllowSameVersionUpgrades behavior. Since this is native MSI packaging, there is no PowerShell live-test coverage for it - verification must rely on manual review of the resulting .wxs/.msi build logic and, if possible, a description in the PR of how the change was validated (e.g. msiexec verbose log inspection or WiX documentation references) since this cannot be verified with a Windows install in this pipeline.

Use this EXACT PR title: MSI installer does not refresh registry InstallDate on version upgrade