Outlook 2010 articles, fixes and updates - letter O

This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft Outlook 2010 starts with letter O that have been released. The list is daily updated.

• 4043461 October 2017, updates for Microsoft Office Q4043461 KB4043461 October 12, 2022
• 3085607 October 13, 2015, update for Outlook 2010 Junk Email Filter (KB3085607) Q3085607 KB3085607 September 22, 2022
• 3085604 October 13, 2015, update for Outlook 2010 (KB3085604) Q3085604 KB3085604 September 22, 2022
• 2598364 "Outlook is retrieving data from the Microsoft Exchange Server" message after you upgrade to Outlook 2010 or Outlook 2013 Q2598364 KB2598364 March 3, 2021
• 3080456 Online Archive is not displayed or it's displayed instead of your mailbox in Outlook 2010 Q3080456 KB3080456 February 8, 2021
• 2556950 Outlook 2010 warns when a delegate deletes a meeting request sent to the manager Q2556950 KB2556950 February 8, 2021
• 2298962 Outlook crashes when you try to send email messages because of a nonexistent delivery location setting in your profile Q2298962 KB2298962 February 8, 2021
• 3114809 Outlook 2010 may crash when you view more than thirty calendars in a calendar view in a Citrix environment Q3114809 KB3114809 January 26, 2021
• 3099951 October 13, 2015, update for Office Q3099951 KB3099951 January 26, 2021
• 3012395 Office 2010 cumulative update for November 2014 Q3012395 KB3012395 January 26, 2021
• 3004223 Office 2010 cumulative update for October 2014 Q3004223 KB3004223 January 26, 2021
• 2995904 Office 2010 cumulative update for September 2014 Q2995904 KB2995904 January 26, 2021
• 2987238 Office 2010 cumulative update for August 2014 Q2987238 KB2987238 January 26, 2021
• 2978161 Office 2010 cumulative update for July 2014 Q2978161 KB2978161 January 26, 2021
• 2970263 Office 2010 cumulative update for June 2014 Q2970263 KB2970263 January 26, 2021
• 2962903 Office 2010 cumulative update for May 2014 Q2962903 KB2962903 January 26, 2021
• 2953732 Office 2010 cumulative update for April 2014 Q2953732 KB2953732 January 26, 2021
• 2925785 Office 2010 cumulative update for February 2014 Q2925785 KB2925785 January 26, 2021
• 2911591 Office 2010 cumulative update for December 2013 Q2911591 KB2911591 January 26, 2021
• 2887713 Office 2010 cumulative update for October 2013 Q2887713 KB2887713 January 26, 2021
• 2869757 Office 2010 cumulative update for August 2013 Q2869757 KB2869757 January 26, 2021
• 2855357 Office 2010 cumulative update for June 2013 Q2855357 KB2855357 January 26, 2021
• 2626707 Outlook connects to the old Exchange server after you move a mailbox from an Exchange Server 2007 server to an Exchange Server 2010 server Q2626707 KB2626707 January 26, 2021
• 2618119 Office 2010 Cumulative Update for October 2011 Q2618119 KB2618119 January 26, 2021
• 2588842 Office 2010 Cumulative Update for August 2011 Q2588842 KB2588842 January 26, 2021
• 2553023 Office 2010 Cumulative Update for June 2011 Q2553023 KB2553023 January 26, 2021
• 2528533 Office 2010 Cumulative Update for April 2011 Q2528533 KB2528533 January 26, 2021
• 2516293 Outlook 2010 stops responding when you try to open a RMS-protected email message that has a large attachment Q2516293 KB2516293 January 26, 2021
• 2493730 Office 2010 Cumulative Update for February 2011 Q2493730 KB2493730 January 26, 2021
• 2479673 Office 2010 Cumulative Update for December 2010 Q2479673 KB2479673 January 26, 2021
• 2449183 Office 2010 Cumulative Update for October 2010 Q2449183 KB2449183 January 26, 2021
• 2396341 Office 2010 Cumulative Update for August 2010 Q2396341 KB2396341 January 26, 2021
• 959625 On a client computer that is running Office Communicator 2007, you may be unable to make a TAPI call from Outlook 2007 or Outlook 2010 Q959625 KB959625 January 26, 2021
• 3142993 Outlook crashes when you try to track an email in Microsoft Dynamics CRM Q3142993 KB3142993 January 25, 2021
• 3017283 Outlook crashes when you open a meeting that contains Lync meeting details Q3017283 KB3017283 January 25, 2021
• 3010660 Outlook Plain Text messages truncated after upgrade to Exchange 2013 SP1 Q3010660 KB3010660 January 25, 2021
• 2916915 Outlook may take two to three minutes to connect to an Office 365 mailbox Q2916915 KB2916915 January 25, 2021
• 2802193 Outlook does not add recipients to the Auto-Complete cache Q2802193 KB2802193 January 25, 2021
• 2796032 Outlook Junk E-mail protection level changes unexpectedly to Low Q2796032 KB2796032 January 25, 2021
• 2655142 Outlook Junk Email settings ignored after you move a mailbox to Exchange Server 2010 Q2655142 KB2655142 January 25, 2021
• 2643084 Outlook receives a message that has an attachment that is named "not supported calendar message.ics" Q2643084 KB2643084 January 25, 2021
• 2509316 Outlook features disabled when installed with Home and Student Q2509316 KB2509316 January 25, 2021
• 2441551 Outlook performance is slow in the Office 365 environment Q2441551 KB2441551 January 25, 2021
• 2426686 Outlook Anywhere (RPC/HTTP) settings are unavailable in the Outlook 2010 Group Policy template Q2426686 KB2426686 January 25, 2021
• 829982 Outlook blocked access to the following potentially unsafe attachments Q829982 KB829982 January 25, 2021
• 3099890 Outlook Today page displays no information under section headings in Outlook 2019 and earlier versions Q3099890 KB3099890 January 14, 2021
• 3019219 Outlook may crash shortly after you start it when you have an iCloud calendar added to your profile Q3019219 KB3019219 January 12, 2021
• 2601637 Outlook 2007 / 2010 status is always offline and can't receive or send mail normally (Easy Fix Articles) Q2601637 KB2601637 January 12, 2021
• 2941697 Outlook Advanced Diagnostic scenario in SaRA results indicate an offline scan was forced by group policy for Outlook object model access Q2941697 KB2941697 January 7, 2021
• 2617010 Outlook application event log entries for add-in load time Q2617010 KB2617010 January 7, 2021
• 2518195 Outlook 2010 does not honor the default sending account Q2518195 KB2518195 January 7, 2021
• 2479719 Outlook policy template deploys DisableCrossAccountCopy as REG_EXPAND_SZ instead of REG_MULTI_SZ Q2479719 KB2479719 January 7, 2021
• 2445711 Outlook Hotmail Connector send/receive error 4403 or 1133 and prompt to repair synchronization configuration Q2445711 KB2445711 January 7, 2021
• 2427204 Outlook 2010 crashes unexpectedly at startup Q2427204 KB2427204 January 7, 2021
• 3020815 Office 2010 cumulative update for December 2014 Q3020815 KB3020815 December 18, 2020
• 2914272 Outlook email stuck in the Outbox when LoadTransportProviders registry value exists Q2914272 KB2914272 December 17, 2020
• 2799195 Outlook shows a Translation Error during the import of a CSV file Q2799195 KB2799195 December 17, 2020
• 2755743 Outlook 2010 MailTip states that you don't have permission to send to a restricted distribution group Q2755743 KB2755743 December 17, 2020
• 2732379 Outlook does not prompt the meeting organizer to send updates only to added or deleted attendees Q2732379 KB2732379 December 17, 2020
• 2686042 Outlook Anywhere cannot be disabled in Outlook 2007 and in Outlook 2010 Q2686042 KB2686042 December 17, 2020
• 214633 Outlook Meeting Request sent to DL Shows Members As Optional Q214633 KB214633 December 17, 2020
• 3163350 Outlook doesn't display your manager's team calendars Q3163350 KB3163350 August 14, 2020
• 2768656 Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst file Q2768656 KB2768656 June 29, 2020
• 2332495 Outlook can't connect through a proxy that's set up by using a file://–based PAC file Q2332495 KB2332495 May 31, 2020
• 2497077 Outlook displays incorrect search results of the GAL in Exchange Server Q2497077 KB2497077 April 30, 2020
• 3032395 Outlook connection issues with Exchange mailboxes because of the RPC encryption requirement Q3032395 KB3032395 April 29, 2020
• 2799216 Outlook doesn't display more than 12 months of your own free/busy data Q2799216 KB2799216 March 11, 2020
• 2937277 "Outlook Message Manager (profile_name) (KEY: hex_number)" email items in an Exchange Online mailbox Q2937277 KB2937277 November 14, 2019
• 2885002 Outlook moves messages to the Junk Mail Folder even if the Spam Confidence Level (SCL) is -1 Q2885002 KB2885002 November 14, 2019
• 2839517 Outlook is unable to connect to Exchange 2013 public folder or auto-mapped mailbox Q2839517 KB2839517 November 14, 2019
• 2746896 Outlook may be slower to resolve names because there are no .oab files locally Q2746896 KB2746896 November 14, 2019
• 3163997 Outlook freezes when composing a new email or replying Q3163997 KB3163997 July 18, 2019
• 2652320 "Outlook not responding" error or Outlook freezes when you open a file or send mail Q2652320 KB2652320 July 8, 2019
• 3190315 Outlook Trust Center shows your antivirus status as “Unavailable. This version of Windows does not support antivirus detection” Q3190315 KB3190315 May 20, 2019
• 3136059 Outlook performance issues when you have many shared folders or mailboxes open Q3136059 KB3136059 May 20, 2019
• 3134780 Outlook displays a "Disconnected" status when IPv6 is enabled Q3134780 KB3134780 May 20, 2019
• 3062443 "Outlook could not create the work file" error when you start Outlook Q3062443 KB3062443 May 20, 2019
• 3056652 Outlook search folders are not populated in Online mode after migration from Exchange 2013 to Exchange 2010 Q3056652 KB3056652 May 20, 2019
• 3044375 Offline item count for a folder in Outlook differs from the server item count Q3044375 KB3044375 May 20, 2019
• 3038305 Outlook.exe.log file in the %Temp% folder consumes too much disk space Q3038305 KB3038305 May 20, 2019
• 3028123 Office program errors when DisableThemes is configured in the __COMPAT_LAYER environment variable Q3028123 KB3028123 May 20, 2019
• 2996728 Outlook - Exchange connection issues when MAPI is disabled for a user Q2996728 KB2996728 May 20, 2019
• 2996202 Outlook issues when msExchMasterAccountSID attribute exists on a user account Q2996202 KB2996202 May 20, 2019
• 2994798 Outlook 2010 performance issues in Cached Mode on Citrix Virtual Desktop Q2994798 KB2994798 May 20, 2019
• 2984311 Outlook data not Instant Search indexed with malformed NoOST value Q2984311 KB2984311 May 20, 2019
• 2975918 Office 365 credential prompts with AuthenticationService registry value Q2975918 KB2975918 May 20, 2019
• 2968977 Outlook is unable to start in Windows 7 or 8 Q2968977 KB2968977 May 20, 2019
• 2859532 Options in Outlook's Resource Scheduling dialog box are disabled Q2859532 KB2859532 May 20, 2019
• 2849035 Office program crashes caused by Btmofficea.dll or Btmoffice.dll Q2849035 KB2849035 May 20, 2019
• 2847732 Outlook application icon missing from the Windows taskbar Q2847732 KB2847732 May 20, 2019
• 2811855 Outlook 2010 Room Finder does not show any conference rooms Q2811855 KB2811855 May 20, 2019
• 2790282 Outlook may shutdown more slowly if an add-in is configured to use RequireShutdownNotification Q2790282 KB2790282 May 20, 2019
• 2785498 Outlook AutoDiscover fails with error 0x80004005 (Outlook 2013) or 0x8004010F (Outlook 2010) Q2785498 KB2785498 May 20, 2019
• 2784787 Outlook users prompted for credentials when they switch from a LAN to a WAN Q2784787 KB2784787 May 20, 2019
• 2723336 Outlook 2010 programmatic security settings for Simple MAPI cannot be configured by using the Group Policy Object Q2723336 KB2723336 May 20, 2019
• 2714439 Office document attachments open in Protected View in Outlook Q2714439 KB2714439 May 20, 2019
• 2669081 Outlook error indicates that you are over the Junk E-mail list limit Q2669081 KB2669081 May 20, 2019
• 2646698 Outlook Issues that occur when you use the ExtractOrganizedMeetings registry value Q2646698 KB2646698 May 20, 2019
• 924470 Outlook delegate feature in mixed versions of Microsoft Outlook and Outlook for Mac Q924470 KB924470 May 20, 2019
• 289962 Outlook does not import meeting attendees from certain file types Q289962 KB289962 May 20, 2019
• 4051374 Outlook repeatedly asks for credentials when using MAPI over HTTP to connect to Exchange Q4051374 KB4051374 November 10, 2018
• 2984912 Outlook continually prompts for your password when you try to connect to Office 365 Q2984912 KB2984912 October 22, 2018
• 4131515 Outlook crashes when you call IMAPIProp::GetProps on a stale MAPIOBJECT Q4131515 KB4131515 September 18, 2018
• 3104471 Outlook Today page is blank in Outlook 2016 and earlier versions Q3104471 KB3104471 September 18, 2018
• 2984937 Outlook cannot connect to Gmail after July 15, 2014 Q2984937 KB2984937 September 18, 2018
• 2659007 Office Configuration Analyzer Tool (OffCAT) information Q2659007 KB2659007 June 11, 2018
• 2986404 Office Applications experience a serious problem with an add-in Q2986404 KB2986404 April 20, 2018
• 3066908 Outlook crashes because of a third-party module Q3066908 KB3066908 April 19, 2018
• 2213768 Outlook sends multiple updates when updating a recurring meeting that includes exceptions Q2213768 KB2213768 April 19, 2018
• 252304 Outlook may not start correctly when you use Windows XP Q252304 KB252304 April 17, 2018
• 236032 Outlook Express and Outlook repeatedly prompt you for your password when you check messages on an Exchange Server-based computer Q236032 KB236032 April 17, 2018
• 3089539 Outlook Calendar is not displayed in the Folder pane or Folder list Q3089539 KB3089539 April 16, 2018
• 2990457 Outlook errors when you try to access a shared calendar Q2990457 KB2990457 April 16, 2018
• 2180568 Outlook: Policy setting to disable the Junk E-mail UI and filtering mechanism Q2180568 KB2180568 April 16, 2018
• 3009161 OffCAT scan is incomplete when DefaultProfile is not specified in the registry Q3009161 KB3009161 December 3, 2017
• 2006508 Outlook connection issues with Exchange mailboxes because of the RPC encryption requirement Q2006508 KB2006508 October 31, 2017
• 2291280 Outlook crash due to corruption in Outlook data file (.pst or .ost) Q2291280 KB2291280 October 26, 2017
• 2762344 Outlook continues to prompt for credentials after your domain password changes Q2762344 KB2762344 October 20, 2017
• 2264398 Outlook: Unable to perform a Check Name or connect to an Exchange mailbox Q2264398 KB2264398 October 20, 2017
• 2231628 Outlook Hotmail Connector users see error (0x8004102A) : ‘Error with Send/Receive’ during normal sync Q2231628 KB2231628 June 6, 2017
• 4021947 Outlook or OWA doesn't display full details of private appointments on shared calendars Q4021947 KB4021947 May 19, 2017
• 2769651 Outlook search returns No matches found Q2769651 KB2769651 March 31, 2017
• 2548313 Outlook issues, including reminders that fail to appear, messages stuck in the Outbox, and Desktop Search indexing problems Q2548313 KB2548313 February 10, 2017
• 3194772 On-premises users are unable to see MailTips of Exchange Online users in Outlook 2010 Q3194772 KB3194772 October 13, 2016
• 3179549 Outlook Object Model: Setting Cancel parameter of TaskRequestItem event doesn't keep Inspector open Q3179549 KB3179549 August 25, 2016
• 2964409 Outlook crashes upon start due to a corrupted view Q2964409 KB2964409 March 11, 2016
• 3061014 Outlook 2010 crashes when your profile includes an IMAP account Q3061014 KB3061014 January 19, 2016
• 2803733 Office programs may crash with the SendToBluetooth add-in installed Q2803733 KB2803733 December 16, 2015
• 3047542 OffCAT automatically does an Offline scan when either OffCAT or Outlook is started with 'Run as administrator' Q3047542 KB3047542 December 8, 2015
• 3117163 Outlook crashes when you view HTML emails on Windows 7 Q3117163 KB3117163 November 30, 2015
• 3096065 "Operation failed" error when you accept or propose new meeting times in Outlook 2010 Q3096065 KB3096065 September 22, 2015
• 3089746 Outlook tools: Description of sample tools for managing PST files in your Outlook Profile Q3089746 KB3089746 September 1, 2015
• 2000021 Outlook tools: Description of sample tools for managing PST files in your Outlook Profile Q2000021 KB2000021 September 1, 2015
• 3066111 Outlook 2010 crashes when many emails or items are open in separate windows Q3066111 KB3066111 June 11, 2015
• 3061113 Outlook crashes when you create or view a meeting request Q3061113 KB3061113 June 11, 2015
• 3063479 Outlook prompts for credentials when you change networks Q3063479 KB3063479 May 22, 2015
• 3058207 Outlook 2010 crashes if update 2825678 is installed Q3058207 KB3058207 May 19, 2015
• 3053762 Outlook email is stuck in the Outbox but is delivered to recipients Q3053762 KB3053762 May 12, 2015
• 3054224 Outlook 2010 error searching shared Contacts folder Q3054224 KB3054224 April 15, 2015
• 3014900 Outlook does not return search results Q3014900 KB3014900 February 12, 2015
• 290663 Outlook does not run VBScript code when you open an item Q290663 KB290663 January 12, 2015
• 2994760 Outlook 2010 Resource Scheduling options are disabled when no public folders are available Q2994760 KB2994760 August 22, 2014
• 2992092 Outlook folder missing if PR_ATTR_HIDDEN is set to True Q2992092 KB2992092 August 18, 2014
• 2745588 Outlook password expiration notification in Office 365 pre-upgrade Q2745588 KB2745588 June 20, 2014
• 2934475 Outlook: Some properties lost when a message is forwarded by an Inbox rule in Exchange 2010 Q2934475 KB2934475 February 24, 2014
• 2904339 Outlook crashes and event ID 1000 is triggered by NRTMsgLibn.dll Q2904339 KB2904339 November 26, 2013
• 2904331 Outlook crashes with an Error event in the Olmapi32.dll module Q2904331 KB2904331 November 26, 2013
• 2901055 Outlook performance issues if TerminalServerSpellingStart policy value set too high Q2901055 KB2901055 October 22, 2013
• 2708641 Outlook Support diagnostic - Full, medium, lite version details Q2708641 KB2708641 September 3, 2013
• 196804 Outlook Error Message: The End Date Occurs Before the Start Date Date Q196804 KB196804 September 3, 2013
• 2874206 Outlook error 0x80041059 "Could not authenticate against the Windows Live ID service" Q2874206 KB2874206 July 25, 2013
• 2320789 Outlook 2010 custom forms work incorrectly because of VBScript code Q2320789 KB2320789 July 12, 2013
• 905803 Outlook users experience poor performance when they work with a folder that contains many items on a server that is running Exchange Server Q905803 KB905803 April 19, 2013
• 244330 Outlook error PST is in use by another application Q244330 KB244330 March 12, 2013
• 2785966 Outlook stops responding (hangs) if your profile has double-byte characters in the name Q2785966 KB2785966 November 20, 2012
• 933793 Outlook 2010 and Outlook 2007 use only Word as the email editor Q933793 KB933793 October 8, 2012
• 2764000 Outlook may hang when the Navigation Pane has hundreds of shortcuts Q2764000 KB2764000 October 1, 2012
• 2704983 Outlook does not automatically determine your email address when you create a new profile Q2704983 KB2704983 September 27, 2012
• 2531579 Outlook 2010 crashes when users shut down a Windows Vista-based computer on which the Online Meeting add-in for Microsoft Lync 2010 is installed Q2531579 KB2531579 August 31, 2012
• 2730669 Outlook 2010 does not display folders moved in a shared mailbox Q2730669 KB2730669 June 29, 2012
• 2710636 Outlook cannot encrypt by using AES when Outlook is running on Windows XP Q2710636 KB2710636 May 10, 2012
• 2427197 Outlook 2010 crashes at startup or when you try to use some features Q2427197 KB2427197 May 9, 2012
• 2704959 Outlook unexpectedly prompts for smart card authentication Q2704959 KB2704959 April 23, 2012
• 2317686 Outlook 2007 and Outlook 2010 Troubleshooting Methodology: Crashes Q2317686 KB2317686 April 9, 2012
• 249129 Outlook: Signature Not Inserted When "Send To" Mail Recipient is Used Q249129 KB249129 April 9, 2012
• 2686906 Order of folder synchronization for Outlook 2007 and for Outlook 2010 Q2686906 KB2686906 April 2, 2012
• 2693800 OOF, MailTips, or Availability (free/busy) cannot be retrieved when Primary SMTP address changes Q2693800 KB2693800 March 23, 2012
• 2674515 Office 2010 error: This action is only valid for products that are currently installed Q2674515 KB2674515 March 21, 2012
• 2261195 Outlook 2007 and Outlook 2010 add "Copy:" to the subject when you copy a meeting Q2261195 KB2261195 December 2, 2011
• 2639664 Outlook 2010 does not display Journal entries for a contact Q2639664 KB2639664 November 1, 2011
• 978808 Outlook VBA settings are not saved when Outlook 2010 exits Q978808 KB978808 October 6, 2011
• 2491363 Outlook 2010 missing features after it is installed as a stand-alone application Q2491363 KB2491363 August 26, 2011
• 2590495 Outlook 2010 attachments may not open in downlevel Excel versions Q2590495 KB2590495 August 4, 2011
• 2530497 Outlook: Unable to save modified permissions to Outlook folder Q2530497 KB2530497 March 31, 2011
• 2449281 Outlook does not close after you install iTunes or another add-in Q2449281 KB2449281 December 31, 2010
• 2287519 Outlook does not support rendering all types of folder home pages Q2287519 KB2287519 September 30, 2010
• 826494 Outlook may stop responding after you install Office XP on a computer that has Office 2003 installed Q826494 KB826494 May 19, 2010