a friend of mine wants to add mail and calendar app to LTSC, saying that the app is a must for him. how can we do it without adding store to LTSC?
You need to look for microsoft.windowscommunicationsapps or full name microsoft.windowscommunicationsapps_16005.14326.20520.0_x64__8wekyb3d8bbwe (if the system is x86, just replace_x64 with _x86) But I already checked, this system can't find this app installation package. I tested PowerShell to get a list of all the default packages, here it is Spoiler PS C:\Windows\system32> Get-AppxPackage -AllUsers | Select Name, PackageFullName Name PackageFullName ---- --------------- windows.immersivecontrolpanel windows.immersivecontrolpanel_10.0.2.1000_neutral_neutral_cw5n1h2txyewy Windows.PrintDialog Windows.PrintDialog_6.2.1.0_neutral_neutral_cw5n1h2txyewy Microsoft.Services.Store.Engagement Microsoft.Services.Store.Engagement_10.0.18101.0_x86__8wekyb3d8bbwe Microsoft.Services.Store.Engagement Microsoft.Services.Store.Engagement_10.0.18101.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.0 Microsoft.UI.Xaml.2.0_2.1810.18004.0_x64__8wekyb3d8bbwe Microsoft.VCLibs.140.00 Microsoft.VCLibs.140.00_14.0.27323.0_x64__8wekyb3d8bbwe Microsoft.Advertising.Xaml Microsoft.Advertising.Xaml_10.1808.3.0_x64__8wekyb3d8bbwe Microsoft.Wallet Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe Microsoft.NET.Native.Runtime.2.2 Microsoft.NET.Native.Runtime.2.2_2.2.28604.0_x86__8wekyb3d8bbwe Microsoft.Xbox.TCUI Microsoft.Xbox.TCUI_1.24.10001.0_x64__8wekyb3d8bbwe Microsoft.NET.Native.Runtime.2.2 Microsoft.NET.Native.Runtime.2.2_2.2.28604.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.4 Microsoft.UI.Xaml.2.4_2.42007.9001.0_x64__8wekyb3d8bbwe Microsoft.NET.Native.Framework.2.2 Microsoft.NET.Native.Framework.2.2_2.2.29512.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.4 Microsoft.UI.Xaml.2.4_2.42007.9001.0_x86__8wekyb3d8bbwe Microsoft.NET.Native.Framework.2.2 Microsoft.NET.Native.Framework.2.2_2.2.29512.0_x86__8wekyb3d8bbwe Microsoft.VCLibs.140.00 Microsoft.VCLibs.140.00_14.0.29231.0_x64__8wekyb3d8bbwe Microsoft.WindowsAlarms Microsoft.WindowsAlarms_10.2101.28.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.1 Microsoft.UI.Xaml.2.1_2.11906.6001.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.1 Microsoft.UI.Xaml.2.1_2.11906.6001.0_x86__8wekyb3d8bbwe Microsoft.ScreenSketch Microsoft.ScreenSketch_10.2008.2277.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.3 Microsoft.UI.Xaml.2.3_2.32002.13001.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.3 Microsoft.UI.Xaml.2.3_2.32002.13001.0_x86__8wekyb3d8bbwe Microsoft.WindowsCamera Microsoft.WindowsCamera_2021.105.10.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.0 Microsoft.UI.Xaml.2.0_2.1810.18004.0_x86__8wekyb3d8bbwe Microsoft.XboxSpeechToTextOverlay Microsoft.XboxSpeechToTextOverlay_1.21.13002.0_x64__8wekyb3d8bbwe Microsoft.XboxGameOverlay Microsoft.XboxGameOverlay_1.54.4001.0_x64__8wekyb3d8bbwe Microsoft.NET.Native.Framework.1.7 Microsoft.NET.Native.Framework.1.7_1.7.27413.0_x64__8wekyb3d8bbwe Microsoft.NET.Native.Framework.1.7 Microsoft.NET.Native.Framework.1.7_1.7.27413.0_x86__8wekyb3d8bbwe Microsoft.NET.Native.Runtime.1.7 Microsoft.NET.Native.Runtime.1.7_1.7.27422.0_x64__8wekyb3d8bbwe Microsoft.NET.Native.Runtime.1.7 Microsoft.NET.Native.Runtime.1.7_1.7.27422.0_x86__8wekyb3d8bbwe Microsoft.BingNews Microsoft.BingNews_4.54.22741.0_x64__8wekyb3d8bbwe Microsoft.WindowsSoundRecorder Microsoft.WindowsSoundRecorder_10.2103.28.0_x64__8wekyb3d8bbwe Microsoft.WindowsCalculator Microsoft.WindowsCalculator_10.2103.8.0_x64__8wekyb3d8bbwe SAMSUNGELECTRONICSCO.LTD.SamsungPrinterExperience SAMSUNGELECTRONICSCO.LTD.SamsungPrinterExperience_1.3.15.0_x64__3c1yjt4zspk6g Microsoft.VCLibs.120.00 Microsoft.VCLibs.120.00_12.0.21005.1_x64__8wekyb3d8bbwe Microsoft.VCLibs.120.00 Microsoft.VCLibs.120.00_12.0.21005.1_x86__8wekyb3d8bbwe Microsoft.MSPaint Microsoft.MSPaint_6.2105.4017.0_x64__8wekyb3d8bbwe Microsoft.MicrosoftOfficeHub Microsoft.MicrosoftOfficeHub_18.2104.12721.0_x64__8wekyb3d8bbwe 1527c705-839a-4832-9118-54d4Bd6a0c89 1527c705-839a-4832-9118-54d4Bd6a0c89_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy c5e2524a-ea46-4f67-841f-6a9465d9d515 c5e2524a-ea46-4f67-841f-6a9465d9d515_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy E2A4F912-2574-4A75-9BB0-0D023378592B E2A4F912-2574-4A75-9BB0-0D023378592B_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy F46D4000-FD22-4DB4-AC8E-4E1DDDE828FE F46D4000-FD22-4DB4-AC8E-4E1DDDE828FE_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy Microsoft.AAD.BrokerPlugin Microsoft.AAD.BrokerPlugin_1000.19041.1023.0_neutral_neutral_cw5n1h2txyewy Microsoft.AccountsControl Microsoft.AccountsControl_10.0.19041.1023_neutral__cw5n1h2txyewy Microsoft.AsyncTextService Microsoft.AsyncTextService_10.0.19041.1023_neutral__8wekyb3d8bbwe Microsoft.BioEnrollment Microsoft.BioEnrollment_10.0.19041.1023_neutral__cw5n1h2txyewy Microsoft.CredDialogHost Microsoft.CredDialogHost_10.0.19041.1023_neutral__cw5n1h2txyewy Microsoft.ECApp Microsoft.ECApp_10.0.19041.1023_neutral__8wekyb3d8bbwe Microsoft.LockApp Microsoft.LockApp_10.0.19041.1023_neutral__cw5n1h2txyewy Microsoft.MicrosoftEdgeDevToolsClient Microsoft.MicrosoftEdgeDevToolsClient_1000.19041.1023.0_neutral_neutral_8wekyb3d8bbwe Microsoft.Win32WebViewHost Microsoft.Win32WebViewHost_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.Apprep.ChxApp Microsoft.Windows.Apprep.ChxApp_1000.19041.1023.0_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.AssignedAccessLockApp Microsoft.Windows.AssignedAccessLockApp_1000.19041.1023.0_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.CallingShellApp Microsoft.Windows.CallingShellApp_1000.19041.1023.0_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.CapturePicker Microsoft.Windows.CapturePicker_10.0.19041.1023_neutral__cw5n1h2txyewy Microsoft.Windows.NarratorQuickStart Microsoft.Windows.NarratorQuickStart_10.0.19041.1023_neutral_neutral_8wekyb3d8bbwe Microsoft.Windows.OOBENetworkCaptivePortal Microsoft.Windows.OOBENetworkCaptivePortal_10.0.19041.1023_neutral__cw5n1h2txyewy Microsoft.Windows.OOBENetworkConnectionFlow Microsoft.Windows.OOBENetworkConnectionFlow_10.0.19041.1023_neutral__cw5n1h2txyewy Microsoft.Windows.ParentalControls Microsoft.Windows.ParentalControls_1000.19041.1023.0_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.PeopleExperienceHost Microsoft.Windows.PeopleExperienceHost_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.PinningConfirmationDialog Microsoft.Windows.PinningConfirmationDialog_1000.19041.1023.0_neutral__cw5n1h2txyewy Microsoft.Windows.Search Microsoft.Windows.Search_1.14.2.19041_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.SecHealthUI Microsoft.Windows.SecHealthUI_10.0.19041.1023_neutral__cw5n1h2txyewy Microsoft.Windows.SecureAssessmentBrowser Microsoft.Windows.SecureAssessmentBrowser_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.XGpuEjectDialog Microsoft.Windows.XGpuEjectDialog_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy Microsoft.XboxGameCallableUI Microsoft.XboxGameCallableUI_1000.19041.1023.0_neutral_neutral_cw5n1h2txyewy NcsiUwpApp NcsiUwpApp_1000.19041.1023.0_neutral_neutral_8wekyb3d8bbwe Windows.CBSPreview Windows.CBSPreview_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy MicrosoftWindows.UndockedDevKit MicrosoftWindows.UndockedDevKit_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.StartMenuExperienceHost Microsoft.Windows.StartMenuExperienceHost_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy Microsoft.Windows.ContentDeliveryManager Microsoft.Windows.ContentDeliveryManager_10.0.19041.1023_neutral_neutral_cw5n1h2txyewy Microsoft.WindowsMaps Microsoft.WindowsMaps_10.2104.2.0_x64__8wekyb3d8bbwe Microsoft.VCLibs.140.00 Microsoft.VCLibs.140.00_14.0.30035.0_x64__8wekyb3d8bbwe Microsoft.ZuneMusic Microsoft.ZuneMusic_10.21061.10121.0_x64__8wekyb3d8bbwe Microsoft.XboxApp Microsoft.XboxApp_48.78.15001.0_x64__8wekyb3d8bbwe Microsoft.MixedReality.Portal Microsoft.MixedReality.Portal_2000.21051.1282.0_x64__8wekyb3d8bbwe Microsoft.People Microsoft.People_10.2105.4.0_x64__8wekyb3d8bbwe MicrosoftWindows.Client.CBS MicrosoftWindows.Client.CBS_120.2212.3920.0_x64__cw5n1h2txyewy Microsoft.UI.Xaml.2.5 Microsoft.UI.Xaml.2.5_2.52012.2002.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.5 Microsoft.UI.Xaml.2.5_2.52012.2002.0_x86__8wekyb3d8bbwe Microsoft.Microsoft3DViewer Microsoft.Microsoft3DViewer_7.2107.7012.0_x64__8wekyb3d8bbwe Microsoft.WindowsStore Microsoft.WindowsStore_12107.1001.15.0_x64__8wekyb3d8bbwe Microsoft.WebMediaExtensions Microsoft.WebMediaExtensions_1.0.42192.0_x64__8wekyb3d8bbwe Microsoft.XboxIdentityProvider Microsoft.XboxIdentityProvider_12.80.11001.0_x64__8wekyb3d8bbwe Microsoft.WebpImageExtension Microsoft.WebpImageExtension_1.0.42351.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.6 Microsoft.UI.Xaml.2.6_2.62108.18004.0_x86__8wekyb3d8bbwe Microsoft.BingWeather Microsoft.BingWeather_4.46.32012.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.6 Microsoft.UI.Xaml.2.6_2.62108.18004.0_x64__8wekyb3d8bbwe Microsoft.Getstarted Microsoft.Getstarted_10.6.42361.0_x64__8wekyb3d8bbwe Microsoft.GetHelp Microsoft.GetHelp_10.2108.42428.0_x64__8wekyb3d8bbwe 58069Idealpandaapps.DrawPDF-editreadannotate 58069Idealpandaapps.DrawPDF-editreadannotate_1.0.4.0_x64__hj51khn65y1a0 Microsoft.MicrosoftStickyNotes Microsoft.MicrosoftStickyNotes_4.1.9.0_x64__8wekyb3d8bbwe Microsoft.Windows.Photos Microsoft.Windows.Photos_2021.21090.10007.0_x64__8wekyb3d8bbwe Microsoft.HEIFImageExtension Microsoft.HEIFImageExtension_1.0.42621.0_x64__8wekyb3d8bbwe Microsoft.WindowsFeedbackHub Microsoft.WindowsFeedbackHub_1.2108.2563.0_x64__8wekyb3d8bbwe Microsoft.DesktopAppInstaller Microsoft.DesktopAppInstaller_1.16.12653.0_x64__8wekyb3d8bbwe Microsoft.Office.OneNote Microsoft.Office.OneNote_16001.14326.20458.0_x64__8wekyb3d8bbwe Microsoft.MicrosoftEdge Microsoft.MicrosoftEdge_44.19041.1266.0_neutral__8wekyb3d8bbwe Microsoft.Windows.CloudExperienceHost Microsoft.Windows.CloudExperienceHost_10.0.19041.1266_neutral_neutral_cw5n1h2txyewy Microsoft.549981C3F5F10 Microsoft.549981C3F5F10_3.2109.6305.0_x64__8wekyb3d8bbwe Microsoft.MicrosoftSolitaireCollection Microsoft.MicrosoftSolitaireCollection_4.10.9220.0_x64__8wekyb3d8bbwe Microsoft.VP9VideoExtensions Microsoft.VP9VideoExtensions_1.0.42791.0_x64__8wekyb3d8bbwe Microsoft.ZuneVideo Microsoft.ZuneVideo_10.21092.10731.0_x64__8wekyb3d8bbwe Microsoft.SkypeApp Microsoft.SkypeApp_15.77.97.0_x86__kzf8qxf38zg5c microsoft.windowscommunicationsapps microsoft.windowscommunicationsapps_16005.14326.20520.0_x64__8wekyb3d8bbwe Microsoft.Windows.ShellExperienceHost Microsoft.Windows.ShellExperienceHost_10.0.19041.1319_neutral_neutral_cw5n1h2txyewy Microsoft.VCLibs.140.00 Microsoft.VCLibs.140.00_14.0.30704.0_x86__8wekyb3d8bbwe Microsoft.UI.Xaml.2.7 Microsoft.UI.Xaml.2.7_7.2109.13004.0_x64__8wekyb3d8bbwe Microsoft.VCLibs.140.00 Microsoft.VCLibs.140.00_14.0.30704.0_x64__8wekyb3d8bbwe Microsoft.UI.Xaml.2.7 Microsoft.UI.Xaml.2.7_7.2109.13004.0_x86__8wekyb3d8bbwe Microsoft.Todos Microsoft.Todos_2.55.42923.0_x64__8wekyb3d8bbwe Microsoft.YourPhone Microsoft.YourPhone_1.21092.134.0_x64__8wekyb3d8bbwe Microsoft.VCLibs.140.00.UWPDesktop Microsoft.VCLibs.140.00.UWPDesktop_14.0.30704.0_x86__8wekyb3d8bbwe Microsoft.VCLibs.140.00.UWPDesktop Microsoft.VCLibs.140.00.UWPDesktop_14.0.30704.0_x64__8wekyb3d8bbwe Microsoft.MicrosoftEdge.Stable Microsoft.MicrosoftEdge.Stable_95.0.1020.30_neutral__8wekyb3d8bbwe Microsoft.XboxGamingOverlay Microsoft.XboxGamingOverlay_5.721.10202.0_x64__8wekyb3d8bbwe Microsoft.StorePurchaseApp Microsoft.StorePurchaseApp_12109.1001.10.0_x64__8wekyb3d8bbwe I also tried reinstalling on my computer, it worked. But keep in mind that I have the full version 19044.1319 for Windows 10 21H2 So, what worked for me may not work on this LTSC. Here is PowerShell command, which one I used Spoiler Code: Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "C:\Program Files\WindowsApps\microsoft.windowscommuni520.0_x64__8wekyb3d8bbwe\AppxManifestcationsapps_16005.14326.20520.0_x64__8wekyb3d8bbwe\AppxManifest.xml"} Good luck.
@Pandemicc for LTSC, you need to add some necessary files before you can install any Store apps. https://forums.mydigitallife.net/th...ises-sku-ltsb-ltsc.70741/page-30#post-1468779
That is too much work and kills the very intention of using LTSC, I will try to convince him to use something else like thunderbird or something.