All Info as Provided by M$. Untouched by ME.
I am only the Delivery Boy.
Improvements in this update
This update includes the following new features and improvements in Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2.
Settings changes for Update and Recovery
This feature introduces new information in the Windows Update Settings, and gives you more information on how up to date your systems are by displaying the most recent check for updates and the last date updates were installed.
Precision touchpad improvements
This feature adds the following three end-user settings to control the behavior of precision touchpad devices:
Leave touchpad on when a mouse is connected
Allow right-clicks on the touchpad
Double-tap and drag
You can find these settings under the Mouse and touchpad menu in PC Settings.
Ruble symbol update
This feature adds new Ruble currency support for input and rendering.
Out-of-date ActiveX control blocking
Wi-Fi Direct APIs for Discoverability
Video capture metadata for MP4
Minimizing Logon Prompts for Microsoft SharePoint Online
This update package fixes the issues that are documented in the following Microsoft Knowledge Base (KB) articles.
KB list
2979880 Blank icon in the Jump List after the application is updated in Windows 8.1 or Windows Server 2012 R2
2976996 Expired certificates cannot be removed when automatic certificate rollover is disabled in Windows Server 2012 R2
2976344 Update to add pronunciation Pinyin strings when you input Chinese characters in Windows RT 8.1 or Windows 8.1
2975620 Private bytes keep increasing when you encrypt data on SQL Server on Window 8.1 or Windows Server 2012 R2
2975080 Computer opens a blank browser window when RMS client sends WIF request to a Windows Server 2012 R2-based AD FS server
2975078 Error occurs when you access exclusion policies in an AD RMS server that is running Windows Server 2012 R2
2975066 You cannot sign in to a web application when you use certificate authentication method in Windows Server 2012 R2
2974308 Windows Server Essentials integration with Office 365 or Windows Azure Active Directory is blocked
2973055 Error 58 when an application calls BackupRead function to back up files that are shared by using SMB in Windows
2972257 Windows Server 2012 R2-based cluster freezes on multiple nodes when you add, rename, or remove disks
2972254 Hyper-V virtual machines cannot be connected to sometimes when TCP connections reconnect in Windows Server 2012 R2
2972251 Event 1002 when system file information folder is shared in Windows 8.1 or Windows Server 2012 R2
2972112 Applications lose local data when you deploy non-English Windows RT 8.1 or Windows 8.1 by using Configuration Manager
2971171 ADFS authentication issue for Active Directory users when extranet lockout is enabled
2969039 0x7E Stop error occurs randomly when you close SMB sessions in Windows 8.1 or Windows Server 2012 R2
2967456 You cannot sort the group lists by principal name in ADUC in Windows
2966087 You intermittently cannot connect to the DirectAccess server by using the IP-HTTPS adapter in Windows 8.1 and Windows Server 2012 R2
2965904 Task name is deleted after you link a storage report to a scheduled task in Windows
2964835 Too few tiles are displayed during image customization in Windows
2962774 "An extended error occured" when you add a group Managed Service Account in Windows
2962142 Can't disable security settings in Group Policy Preferences for Internet Explorer 10
2959144 USB device remove and install repeatedly when it is connected to a Windows 8.1 or Windows Server 2012 R2-based computer
2957984 The rdgiskdcproxy:i:1 property cannot be set for the remote apps that are hosted by RD Web Access on Windows Server
2956344 Clients randomly lose connection to a Windows Server 2012 R2 or Windows Server 2008 R2 SP1 Network Policy Server
2954031 The Group Policy Management Console does not generate a status report for a domain
2953997 Windows MultiPoint Server occasionally crashes when you start the WMS shell in Windows Server 2012 R2 or Windows Server 2012
2953972 Clicking "Find more" under mobile broadband causes Searching status to freeze in Windows 8.1 and Windows RT 8.1
2936943 Registry.pol is corrupted after an abnormal termination during the writing process in Windows Server
2934797 USB device appears with a yellow exclamation mark in Windows Device Manager in Windows 8.1 or Windows Server 2012 R2
2866693 Wired or Wireless Network GPO setting is not displayed in GPMC report in Windows
2990795 "Failed to fetch servers" when you try to find available IP addresses in IP Address Management in Windows Server 2012 R2
2985822 SystemSettings.exe process crashes when you add a VPN connection on a Windows RT 8.1 or Windows 8.1-based computer
2984374 Connect to incorrect entry point when Windows 8.1 or Windows Server 2012 R2-based computer wakes from sleep or hibernate
2983590 File download freezes and CPU usage high when WFP callout driver is installed in Windows 8.1 or Windows Server 2012 R2
2983477 Account picture shifts to right side after you unlock a computer from an application in Windows 8.1 or Windows RT 8.1
2983139 "0x0000009F" Stop error occurs on a Windows 8.1 or Windows Server 2012 R2-based computer
2982498 Touch input does not work in Windows Journal after Windows 8.1 wakes from sleep mode while the program is running
2980433 Properties of an item opens randomly when you double-click the item in Windows 8.1 or Windows Server 2012 R2
2980415 Playback stops when you open a file that the Xbox Music application is playing in Windows RT 8.1 or Windows 8.1
2979923 "Processing error occurred" when you detect status of Active Directory in Windows Server 2012 R2-based domain controller
2979877 Folder redirection stops working when multiple users log on to a Windows 8.1 or Windows Server 2012 R2-based computer
2979097 Computer does not wake when you disconnect AC power from the Windows 8.1-based or Windows Server 2012 R2-based computer
2979070 Update to improve battery life during low-power audio playback in Windows 8.1 and Windows RT 8.1
2979053 "Set as metered connection" setting for Wi-Fi and MBB connections remains in Off state in Windows RT 8.1 or Windows 8.1
2979052 "App can't set print settings" error or DBCS characters cannot be printed in Windows 8.1 or Windows RT 8.1
2979051 Windows Store app still reacts to search text when you delete the text in Search charm in Windows 8.1 and Windows RT 8.1
2979050 "Insert a SIM" text is still shown in VAN UI after you insert a SIM card in Windows 8.1 or Windows RT 8.1
2978391 Virtual machines perform slowly or crash in Windows 8.1 and Windows Server 2012 R2
2978368 0x9F Stop error occurs randomly when a computer enters hibernation from InstantGo state in Windows 8.1 or Windows RT 8.1
2978367 Remote Desktop session freezes when you run an application in the session in Windows 8.1 or Windows Server 2012 R2
2978104 File or folder is not found or an error occurs when you configure SMB share properties in Windows RT 8.1 or Windows 8.1
2978102 Cluster nodes stop when multiple physical disks in storage space are disconnected in Windows Server 2012 R2
2978101 Windows 2012 R2-based Hyper-V host cluster freezes when virtual machines use shared virtual hard disks
2978100 URL of a web application is broken when you access the web application by using WAP in Windows Server 2012 R2
2978096 ExtendedProtectionTokenCheck setting keeps being disabled in AD FS 3.0 in Windows Server 2012 R2
2976995 You cannot access an SMB share that is located on a Windows 8.1 or Windows Server 2012 R2-based file server
2976994 Shared folder in Windows Server 2012 R2 or Windows 8.1 cannot be accessed by using SMB version 1 protocol
2976965 "Inaccessible, Empty or Disabled" message in Group Policy Results report for a remote computer in Windows Server 2012 R2
2976946 FindFirstPrinterChangeNotification can now request 3D printers in Windows 8.1 and Windows Server 2012 R2
2976918 You are prompted to re-enter credentials frequently when using Work Folders by using ADFS authentication in Windows 8.1
2990532 Browser icons cannot be unpinned from taskbar when you change the default browser in Windows RT 8.1 or Windows 8.1
2983142 Delay in turning on display when you reopen lid of a Windows 8.1 or Windows Server 2012 R2-based portable computer
2982727 PDF file pages are blank when you open the file by using a Windows Store app in Windows 8.1 or Windows Server 2012 R2
2981650 August 2014 OneDrive reliability update for Windows RT 8.1 and Windows 8.1
2980756 You cannot log on to an AD FS server when you use an alternative UPN suffix account in Windows Server 2012 R2
2980665 Windows crashes with Stop error when filter driver perform FltWriteFileEx function in Windows RT 8.1 or Windows 8.1
2980661 Update to add a new performance counter feature for Tiered Storage Spaces in Windows Server 2012 R2
2980659 0x0000007E Stop error when you enable ETW and storage spaces debug logs on a Windows Server 2012 R2-based computer
2980345 Desktop isn't shown correctly when network icon in notification area is changed repeatedly in 64-bit version of Windows
Prerequisites
To apply this update, you must first install the update 2919355 on Windows 8.1 or Windows Server 2012 R2. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2919355 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update April, 2014
Restart information
You must restart the computer after you apply this update.
Update replacement information
This update does not replace any previously released update.
File information
The following table lists the thumbprints of the certificates that are used to sign the updates (.msu). Verify the certificate thumbprint in this Microsoft Knowledge Base article against the certificate thumbprint indicated on the update that you download.
File name
SHA1 and SHA2
Windows8.1-KB2975719-arm.msu
SHA1: 1D4015E3A710E78B50BFA83F84F92276B36A9377
SHA256: B804222D2AADE0E003837AF500747C2B5E15E8955129827B27D6F494A4AC0404
Windows8.1-KB2975719-x64.msu
SHA1: 6A6830000D668D03159C06F0810686F93C2DAD2C
SHA256: 4BDE48CE5F998E0E6F31CE94006A8353F715DBA13C566453E183EEE39819431B
Windows8.1-KB2975719-x86.msu
SHA1: 4F06911BAB7D6E508EEC2F0A9B11C04E5C9119C4
SHA256: DA5D770B85ACCCB763C4B688BE3DD60F5D59849E5BF3B028F5E5FC10C4236F35
Windows8.1-KB2990532-arm.msu
SHA1:3E84FE40923E43072240C984BE661214C644701E
SHA256: B7BEDA4D7D540A2084F3AF038453748E34424784C03399DCD39507F2964369D7
Windows8.1-KB2990532-x64.msu
SHA1: 3EC667D2023666D8EA37C6139C6569D3ED2D0D2A
SHA256: 73667F527469BA10550DBAABF100D9FC74A195A628C76F9D37CC8474FA956207
Windows8.1-KB2990532-x86.msu
SHA1: 0BF70007B44067BD5777D93457FA5AA814411D5D
SHA256: A5E649CE1E194FE09A3DD8A0321849C60101AFE98ECBD5DE60B2F00D53C961E5