Windows 8.1 articles, fixes and updates - letter A

This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Windows 8.1 starts with letter A that have been released. The list is daily updated.

• 4571703 August 11, 2020—KB4571703 (Monthly Rollup) Q4571703 KB4571703 September 18, 2020
• 4000734 Accessibility features in Microsoft Edge Q4000734 KB4000734 August 31, 2020
• 4571723 August 11, 2020—KB4571723 (Security-only update) Q4571723 KB4571723 August 11, 2020
• 15087 About Genuine Windows Q15087 KB15087 July 29, 2020
• 15083 Activate Windows 7 or Windows 8.1 Q15083 KB15083 July 29, 2020
• 4550970 April 14, 2020—KB4550970 (Security-only update) Q4550970 KB4550970 June 11, 2020
• 4550958 April 21, 2020—KB4550958 (Preview of Monthly Rollup) Q4550958 KB4550958 June 11, 2020
• 4550961 April 14, 2020—KB4550961 (Monthly Rollup) Q4550961 KB4550961 June 10, 2020
• 299540 An explanation of the Automatic Metric feature for IPv4 routes Q299540 KB299540 May 28, 2020
• 15347 Announcing Windows 8.1 support lifecycle policy Q15347 KB15347 April 29, 2020
• 3077715 August 2015 cumulative time zone update for Windows operating systems Q3077715 KB3077715 April 21, 2020
• 3038936 August 2015 anti-malware platform update for Windows Defender in Windows 8.1 and Windows 8 Q3038936 KB3038936 April 10, 2020
• 3013538 Automatic brightness option is disabled unexpectedly after you switch between PC settings pages in Windows Q3013538 KB3013538 April 10, 2020
• 2998174 Active camera is switched unexpectedly when you review photos in Camera app in Windows 8.1 or Windows Server 2012 R2 Q2998174 KB2998174 April 10, 2020
• 2979588 Additional fixes included in Security Update for Service Bus 1.1 for Windows Server (KB2979588) Q2979588 KB2979588 April 10, 2020
• 2923528 Application cannot be started after upgrading to Windows 8.1 Q2923528 KB2923528 April 10, 2020
• 3179574 August 2016 update rollup for Windows 8.1 and Windows Server 2012 R2 Q3179574 KB3179574 April 9, 2020
• 3128650 Access to COM+ role-based security is denied in Windows Server 2012 R2 Q3128650 KB3128650 April 9, 2020
• 3099834 "Access violation" error and application that uses private keys crashes in Windows 8.1 or Windows Server 2012 R2 Q3099834 KB3099834 April 9, 2020
• 3087390 Application may crash with 0x8002801D error in Windows 8.1 or Windows Server 2012 R2 Q3087390 KB3087390 April 9, 2020
• 3080800 "Access violation (c0000005)" error if the NcdAutoSetup service crashes in Windows 8.1 or Windows RT 8.1 Q3080800 KB3080800 April 9, 2020
• 3054464 Applications that use the AddEntry method may crash in Windows Q3054464 KB3054464 April 9, 2020
• 3034348 "Access denied" error when you use a Windows Store app to configure printer property settings in Windows Q3034348 KB3034348 April 9, 2020
• 3021910 April 2015 servicing stack update for Windows 8.1 and Windows Server 2012 R2 Q3021910 KB3021910 April 9, 2020
• 3020338 Application does not work correctly after you apply update 3006226 in Windows Q3020338 KB3020338 April 9, 2020
• 2998527 A September 2014 time zone update for Russia is available Q2998527 KB2998527 April 9, 2020
• 2984350 A DST update for Morocco Ramadan for the year 2014 is available Q2984350 KB2984350 April 9, 2020
• 2981580 August 2014 cumulative time zone update for Windows operating systems Q2981580 KB2981580 April 9, 2020
• 2979500 August 2014 update to support many camera-specific file formats in Windows 8.1 and Windows RT 8.1 Q2979500 KB2979500 April 9, 2020
• 2975719 August 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Q2975719 KB2975719 April 9, 2020
• 2971239 August 2014 MDM client update in Windows RT 8.1 and Windows 8.1 Q2971239 KB2971239 April 9, 2020
• 2969339 April 2014 servicing stack update for Windows 8.1 and Windows Server 2012 R2 Q2969339 KB2969339 April 9, 2020
• 2955808 A VPN connection through a third-party VPN server disconnects after an hour on a Windows-based computer Q2955808 KB2955808 April 9, 2020
• 2939153 Anti-malware platform update for Windows Defender in Windows 8 and Windows RT Q2939153 KB2939153 April 9, 2020
• 2894853 Anti-malware platform update for Windows Defender is available in Windows 8, Windows RT, Windows 8.1, and Windows RT 8.1 Q2894853 KB2894853 April 9, 2020
• 2287297 A COM+ application may stop working in Windows when a user logs off Q2287297 KB2287297 January 20, 2020
• 4537086 Applications do not find a new scanning device after another device is disconnected Q4537086 KB4537086 January 14, 2020
• 4512489 August 13, 2019—KB4512489 (Security-only update) Q4512489 KB4512489 November 28, 2019
• 18823 Automotive Wallpapers - Windows Help Q18823 KB18823 August 21, 2019
• 18822 Art (photographic) Wallpapers - Windows Help Q18822 KB18822 August 21, 2019
• 18818 Art (illustrative) Wallpapers - Windows Help Q18818 KB18818 August 21, 2019
• 18673 Animal Wallpapers - Windows Help Q18673 KB18673 August 21, 2019
• 4512478 August 17, 2019—KB4512478 (Preview of Monthly Rollup) Q4512478 KB4512478 August 20, 2019
• 4512488 August 13, 2019—KB4512488 (Monthly Rollup) Q4512488 KB4512488 August 19, 2019
• 4493446 April 9, 2019—KB4493446 (Monthly Rollup) Q4493446 KB4493446 August 13, 2019
• 4493443 April 25, 2019—KB4493443 (Preview of Monthly Rollup) Q4493443 KB4493443 August 13, 2019
• 4015550 April 11, 2017—KB4015550 (Monthly Rollup) Q4015550 KB4015550 August 13, 2019
• 4512989 Actual I/O time-out is 10 times shorter than the specified value in User-Mode Driver Framework 2.0 Q4512989 KB4512989 July 24, 2019
• 4462979 About Color Management Q4462979 KB4462979 July 12, 2019
• 4493467 April 9, 2019—KB4493467 (Security-only update) Q4493467 KB4493467 June 11, 2019
• 4039810 Applications freeze when they concurrently try to access a file on a network drive in Windows Q4039810 KB4039810 May 21, 2019
• 4494446 An Internet Explorer or Edge window opens when your computer connects to a corporate network or a public network Q4494446 KB4494446 April 12, 2019
• 4023462 Autofocus on Surface 3, Surface Pro, Surface Go, and Surface Book Q4023462 KB4023462 April 10, 2019
• 4343891 August 30, 2018—KB4343891 (Preview of Monthly Rollup) Q4343891 KB4343891 March 12, 2019
• 4343888 August 14, 2018—KB4343888 (Security-only update) Q4343888 KB4343888 March 12, 2019
• 925196 Automatically diagnose and fix Windows USB problems Q925196 KB925196 January 28, 2019
• 871233 Automatically diagnose and fix Windows USB problems Q871233 KB871233 January 28, 2019
• 310575 Automatically diagnose and fix Windows USB problems Q310575 KB310575 January 28, 2019
• 17613 Automatically diagnose and fix problems with Windows Firewall Q17613 KB17613 January 28, 2019
• 17601 Automatically fix Windows security issues Q17601 KB17601 January 28, 2019
• 17590 Automatically diagnose and repair Windows file and folder problems Q17590 KB17590 January 28, 2019
• 2912805 AD replication fails with an RPC issue after you set a static port for NTDS in a Windows-based domain environment Q2912805 KB2912805 October 22, 2018
• 4462938 About User Account Control settings Q4462938 KB4462938 September 25, 2018
• 4343898 August 14, 2018—KB4343898 (Monthly Rollup) Q4343898 KB4343898 September 19, 2018
• 2885695 An update is available that enables you to upgrade to the correct version of Windows 8.1 from Windows 8.1 Preview Q2885695 KB2885695 September 18, 2018
• 2863846 Authentication issues when you use Windows Store apps that declare the Enterprise Authentication capability in Windows 8.1 Preview Q2863846 KB2863846 September 18, 2018
• 950929 Activate Windows 7 or Windows 8.1 - Windows Help Q950929 KB950929 September 4, 2018
• 307890 Activate Windows 7 or Windows 8.1 - Windows Help Q307890 KB307890 September 4, 2018
• 4034681 August 8, 2017—KB4034681 (Monthly Rollup) Q4034681 KB4034681 August 22, 2018
• 4034672 August 8, 2017—KB4034672 (Security-only update) Q4034672 KB4034672 August 22, 2018
• 4034663 August 15, 2017—KB4034663 (Preview of Monthly Rollup) Q4034663 KB4034663 August 22, 2018
• 4015553 April 18, 2017—KB4015553 (Preview of Monthly Rollup) Q4015553 KB4015553 August 22, 2018
• 4009450 August 16, 2016 — KB3179574 Q4009450 KB4009450 August 22, 2018
• 4015547 April 11, 2017—KB4015547 (Security-only update) Q4015547 KB4015547 August 21, 2018
• 4093121 April 17, 2018—KB4093121 (Preview of Monthly Rollup) Q4093121 KB4093121 April 17, 2018
• 2939344 "Access Denied" when you use some Silverlight applications in Internet Explorer 11 on Windows 8.1 Q2939344 KB2939344 April 17, 2018
• 4093115 April 10, 2018—KB4093115 (Security-only update) Q4093115 KB4093115 April 10, 2018
• 4093114 April 10, 2018—KB4093114 (Monthly Rollup) Q4093114 KB4093114 April 10, 2018
• 4034882 Audio issues - Accessories troubleshooting Q4034882 KB4034882 February 16, 2018
• 3109156 Applications may freeze when ADSI APIs waits infinitely for server to respond in Windows Server 2012 R2 Q3109156 KB3109156 January 9, 2018
• 2903542 Auto screen rotation disabled with Store apps in Split Mode Q2903542 KB2903542 October 26, 2017
• 4039871 August 28, 2017—KB4039871 (Update for Preview of Monthly Rollup) Q4039871 KB4039871 September 21, 2017
• 3163232 Application crashes when you open an earlier version of an Office file in Windows 8.1 or Windows Server 2012 R2 Q3163232 KB3163232 February 14, 2017
• 2996954 Additional manageability setting for out-of-date ActiveX control blocking in Internet Explorer Q2996954 KB2996954 October 31, 2016
• 3192665 ActiveX installation that uses AXIS fails after you install MS16-104 Q3192665 KB3192665 September 22, 2016
• 3145400 Application that uses PDF WinRT API may crash when you open a PDF file in Windows 8.1 or Windows RT 8.1 Q3145400 KB3145400 May 17, 2016
• 2930145 An HTTP proxy is ignored when RPC calls are made from a computer that is running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2 Q2930145 KB2930145 May 12, 2016
• 3109093 Applications can't communicate over TCP loopback path in Windows 8.1 or Windows Server 2012 R2 Q3109093 KB3109093 December 9, 2015
• 3102998 Application can't connect to iSCSI servers in Windows Server 2012 R2 or Windows Server 2012 Q3102998 KB3102998 December 8, 2015
• 3101718 Application freezes when you switch the system from DC mode to AC mode in Windows 8.1 or Windows Server 2012 R2 Q3101718 KB3101718 November 11, 2015
• 3100477 A large file upload or a large repository clone fails on VSO in Windows Server 2012 R2 Q3100477 KB3100477 November 11, 2015
• 3094199 Application module can't receive correct process status after security update 3045999 is installed in Windows Q3094199 KB3094199 November 4, 2015
• 3093550 All ScriptProperty members are invoked when you run the Add-Member PowerShell command in Windows 8.1 Q3093550 KB3093550 November 4, 2015
• 3049255 .admx errors when running Local Group Policy Editor (gpedit.msc) in Windows Q3049255 KB3049255 October 5, 2015
• 3080728 Applications can't perform I/Os in Windows Server 2012 R2 Q3080728 KB3080728 September 24, 2015
• 3081405 August 2015 Bing Weather app update for WSUS for Windows 8.1 Q3081405 KB3081405 August 18, 2015
• 3081403 August 2015 Bing Health & Fitness app update for WSUS for Windows 8.1 Q3081403 KB3081403 August 18, 2015
• 3081402 August 2015 Bing Maps app update for WSUS for Windows 8.1 Q3081402 KB3081402 August 18, 2015
• 3081401 August 2015 Bing News app update for WSUS for Windows 8.1 Q3081401 KB3081401 August 18, 2015
• 3081399 August 2015 Bing Sports app update for WSUS for Windows 8.1 Q3081399 KB3081399 August 18, 2015
• 3081398 August 2015 Bing Travel app update for WSUS for Windows 8.1 Q3081398 KB3081398 August 18, 2015
• 3081397 August 2015 Bing Finance app update for WSUS for Windows 8.1 Q3081397 KB3081397 August 18, 2015
• 3080457 August 2015 Communications Apps update for WSUS for Windows 8.1 Q3080457 KB3080457 August 18, 2015
• 3067699 Application can't receive data in the serialized order through a Bluetooth LE device in Windows 8.1 Q3067699 KB3067699 August 18, 2015
• 3075872 Application might stop working when it is used in Windows Q3075872 KB3075872 August 11, 2015
• 3064307 A memory leak occurs in the Lsass.exe process during a high SSL workload in Windows Server 2012 R2 or Windows Server 2012 Q3064307 KB3064307 July 22, 2015
• 3008241 A window that has the WS_EX_TOPMOST extended window style removed is displayed above other windows Q3008241 KB3008241 June 17, 2015
• 3042816 AD DS or AD LDS responds slowly to LDAP query that has an undefined attribute and an OR clause in Windows Q3042816 KB3042816 May 18, 2015
• 3053744 Applications play 5.1-channel audio content that uses only two channels in Windows Q3053744 KB3053744 May 12, 2015
• 3046799 Azure services overbill when you use point-to-site VPN service in Windows Server 2012 R2 Q3046799 KB3046799 May 12, 2015
• 2999237 An application connection fails through a dual-use socket that is redirected by using a WFP callout driver Q2999237 KB2999237 May 12, 2015
• 3023555 A short delay is experienced in IPsec connections if RSS is enabled on a Windows-based computer Q3023555 KB3023555 April 14, 2015
• 3033794 Azure Backup supports offline disk shipment and increases the number of backup copies and retention policies in Windows Q3033794 KB3033794 April 3, 2015
• 3022752 A custom authentication package causes an error on a computer that is running Windows 8.1 Q3022752 KB3022752 March 10, 2015
• 3035936 Access Denied error message when you access an SMB file share in Windows Q3035936 KB3035936 February 27, 2015
• 2972112 Applications lose local data when you deploy non-English Windows RT 8.1 or Windows 8.1 by using Configuration Manager Q2972112 KB2972112 February 13, 2015
• 2862304 AD DS or AD LDS responds slowly to complex LDAP query that has a deeply nested filter on a Windows server Q2862304 KB2862304 January 21, 2015
• 3015072 Azure Backup now supports 64-bit editions of Windows client operating systems Q3015072 KB3015072 December 19, 2014
• 3003385 "Access Violation" error when AzMan processes business rules in Windows Q3003385 KB3003385 December 9, 2014
• 3000461 A wireless, high-quality print job to a WSD port is automatically canceled on a Windows 8.1 computer Q3000461 KB3000461 December 9, 2014
• 3004163 Application crashes when you input text at the beginning of multiple lines in Windows 8.1 or Windows Server 2012 R2 Q3004163 KB3004163 November 18, 2014
• 2891362 A file copy operation fails when files or folders have long paths in Windows Explorer Q2891362 KB2891362 November 11, 2014
• 2989936 An NTFS volume is flagged as dirty after each restart, and CHKDSK can find no issues in Windows 8.1 and Windows Server 2012 R2 Q2989936 KB2989936 November 4, 2014
• 3004880 A UEFI mode system cannot boot after maintenance or servicing activity Q3004880 KB3004880 October 30, 2014
• 2974313 A domain controller freezes when an event subscription manager list is long in Windows Q2974313 KB2974313 October 15, 2014
• 2992418 After you move a hard disk drive from one slot in an enclosure to a different slot in Windows 8.1, you receive incorrect enclosure information Q2992418 KB2992418 October 14, 2014
• 2914387 Address AD object renaming issues when success auditing is enabled Q2914387 KB2914387 October 9, 2014
• 2989708 Application crashes after the LPRemove task runs in Windows 8.1 or Windows Server 2012 R2 Q2989708 KB2989708 September 9, 2014
• 2982777 Application freezes on external touch-capable monitor on a Windows 8.1 or Windows Server 2012 R2-based computer Q2982777 KB2982777 August 13, 2014
• 2983477 Account picture shifts to right side after you unlock a computer from an application in Windows 8.1 or Windows RT 8.1 Q2983477 KB2983477 August 12, 2014
• 2981650 August 2014 OneDrive reliability update for Windows RT 8.1 and Windows 8.1 Q2981650 KB2981650 August 12, 2014
• 2979052 "App can't set print settings" error or DBCS characters cannot be printed in Windows 8.1 or Windows RT 8.1 Q2979052 KB2979052 August 12, 2014
• 2978002 August 2014 update for Quick Note-Taking Experience feature in Windows RT 8.1 and Windows 8.1 Q2978002 KB2978002 August 12, 2014
• 2967077 A network printer is deleted unexpectedly in Windows Q2967077 KB2967077 August 12, 2014
• 2962774 "An extended error occured" when you add a group Managed Service Account in Windows Q2962774 KB2962774 August 12, 2014
• 2959943 "Another application has exclusive access to the device" error when you claim multiple devices through POS for .NET 1.14 Q2959943 KB2959943 August 12, 2014
• 2953597 April 2014 OneDrive reliability update for Windows RT 8.1 and Windows 8.1 Q2953597 KB2953597 July 30, 2014
• 2950183 A Windows Defender deadlock occurs in Windows 8.1 or Windows Server 2012 R2 Q2950183 KB2950183 July 25, 2014
• 2960396 Add recording support H.264 for modern communication apps in Windows 8.1 or Windows Server 2012 R2 Q2960396 KB2960396 May 14, 2014
• 2954185 Applications or services freeze when you monitor a DNS server in Windows 8.1 or Windows Server 2012 R2 Q2954185 KB2954185 May 14, 2014
• 2917033 An update is available to enable the use of Local ADMX files for Group Policy Editor Q2917033 KB2917033 May 14, 2014
• 2748719 ASP.NET 2.0 and ASP.NET 3.5 do not work after you uninstall ASP.NET 4.5 in Windows 8 or Windows Server 2012 Q2748719 KB2748719 April 25, 2014
• 2928248 Authentication fails for Windows 8.1 or Windows 8 clients that are configured for SSO authentication on a wireless network Q2928248 KB2928248 April 15, 2014
• 2959233 Account name appears as “%1” in a Refresh your PC screen on Norwegian versions of Windows 8.1 Q2959233 KB2959233 April 10, 2014
• 2931789 Auto Connect does not work and network access is limited in Windows 8.1 and Windows Server 2012 R2 Q2931789 KB2931789 April 10, 2014
• 2927767 Audio redirection stops 30 to 60 minutes after you connect to a guest operating system on a Hyper-V host computer that is running Windows Q2927767 KB2927767 April 10, 2014
• 2940133 Applications close unexpectedly when they read performance counter values in Windows 8.1 or Windows Server 2012 R2 Q2940133 KB2940133 April 8, 2014
• 2940078 Auto-triggered VPN does not work for Work Folders in Windows 8.1 or Windows RT 8.1 Q2940078 KB2940078 April 8, 2014
• 2930575 Auto-correct problems with uppercase letters in Windows 8.1 and Windows Server 2012 R2 Q2930575 KB2930575 April 8, 2014
• 2930121 A control does not work correctly when you scroll and select items in it in Windows 8.1 or Windows Server 2012 R2 Q2930121 KB2930121 April 8, 2014
• 2929878 Activity isn't detected when you insert or remove an SD card in Windows 8.1 or Windows Server 2012 R2 Q2929878 KB2929878 April 8, 2014
• 2923883 Application crashes if it contains VBA macros in Windows 8.1 or Windows Server 2012 R2 Q2923883 KB2923883 April 8, 2014
• 2917488 "AV_NULL_IP_BTHUSB!USBD_CreateHandle" Stop error on a Windows 8.1-based computer that has certain MediaTek drivers installed Q2917488 KB2917488 April 8, 2014
• 2870256 An app bar may unintentionally obscure items on the Windows task bar in Windows Q2870256 KB2870256 April 8, 2014
• 2913877 A local print server is pruned from domain controllers in Windows Server 2012 R2 or Windows Server 2012 Q2913877 KB2913877 March 21, 2014
• 2903025 Antivirus software doesn't check whether a file is digitally signed in Windows Q2903025 KB2903025 March 12, 2014
• 2890450 A red x appears in the network icon tray and the "Networks" flyout hangs in Windows 8 or Windows 8.1 when you have 300 or more access points Q2890450 KB2890450 March 11, 2014
• 2920546 An application cannot establish a connection to its required destination services in Windows 8.1 Q2920546 KB2920546 February 12, 2014
• 2923126 Application crashes when the search path is constructed for non-static dependencies of the module in Windows 8.1 Q2923126 KB2923126 February 11, 2014
• 2866345 "AD / SYSVOL version mismatch" message is displayed unexpectedly in the Group Policy Results report in Windows Q2866345 KB2866345 February 11, 2014
• 2929203 Application error in Explorer.exe when you shut down or restart Windows Q2929203 KB2929203 February 7, 2014
• 2920968 Audible distortion can be heard when using inbox USB audio driver and a USB device Q2920968 KB2920968 January 25, 2014
• 2913700 A system deadlock occurs between two threads on an FCB resource for the TXF log in Windows 8.1 Q2913700 KB2913700 January 15, 2014
• 2913317 Autocorrection feature does not remember user decisions in Windows 8.1 Q2913317 KB2913317 January 14, 2014
• 2912225 ADAC crashes when you try to use the global search in Windows 8.1 or Windows Server 2012 R2 Q2912225 KB2912225 January 14, 2014
• 2916670 Application Event Log Warning ID 1058 (Security-SPP) may be logged after reboot on OEM systems Q2916670 KB2916670 January 7, 2014
• 2901847 Application Event Log Warning ID 1058 (Security-SPP) may be logged after reboot on OEM systems Q2901847 KB2901847 December 20, 2013
• 2897143 Application or device that uses the NVMe interface does not work correctly in Windows 8.1 or Windows Server 2012 R2 Q2897143 KB2897143 December 18, 2013
• 2895212 A Trusted Platform Module (TPM) is not recognized on some Windows 7-based and Windows 8-based devices Q2895212 KB2895212 November 20, 2013
• 2907638 ADSL connection fails to connect with error 651 Q2907638 KB2907638 November 7, 2013
• 2896454 An error toast notification is displayed when WSD printer does not respond for more than 30 seconds Q2896454 KB2896454 October 7, 2013
• 2457622 “Access Denied” error trying to rename a file on share available offline Q2457622 KB2457622 March 1, 2011