HowTo-Outlook

A Security Update has been released for Outlook 2010. In addition to resolving the vulnerability, it also contains 2 documented improvements and fixes. 

• Resolves the vulnerabilities mentioned in Microsoft Security Bulletin MS16-029 which could allow remote code execution if a user opens a specially crafted Office file.
• Outlook may stop responding when you have more that 30 Calendars in the calendar view in a Citrix environment. You can now set the ResetViewThrottle Registry value.
• Appointments that start and end on different days will be displayed as multiple meetings in the Month view in Outlook 2010. (Reverts the behavior to how it was before the December 2015 update KB311409) 

View: Download information for KB3114883

Note: This update can be installed via Microsoft Update and updates Outlook to version 14.0.7167.5000.

A Security Update has been released for Outlook 2007. It resolves the vulnerabilities mentioned in Microsoft Security Bulletin MS16-029 which could allow remote code execution if a user opens a specially crafted Office file.

View: Download information for KB2880510

Note: This update can be installed via Microsoft Update and updates Outlook to version 12.0.6744.5000.

After applying the February 16 update for Office 365, version 16.0.6568.2025, you may encounter the following issues in Outlook 2016 when you are using a POP3 account.

• When you have the POP3 account configured to leave the emails on the mail server  for x days, the setting isn’t being respected and all emails are deleted from the mail server anyway.
• When you have the POP3 account configured to leave all the emails on the mail server, the emails are repeatedly being downloaded and thus cause duplicates.

Microsoft is working on a fix but in the meantime, you can use one of the following workarounds.

• Configure your POP3 account not to delete it after X days but leave a copy on the mail server (in some cases, you’ll then end up getting the second issue).
• Configure your POP3 account to not keep a copy on the mail server.
• Configure your account as an IMAP account instead of a POP3 account.
• Uninstall the update by rolling back to version 16.0.6366.2068 or even earlier.

For cleanup tips see: Delete duplicates after emails got redownloaded.

Uninstalling the update

Before uninstalling the update, disable automatic update via:
File-> Office Account-> Update Options-> Disable Updates

Additionally, create a reminder in your Calendar to re-enable updates in April as a fix for this issue should be deployed by then.

To uninstall the update and revert to the February 9 build, open a Command Prompt as an Administrator and run the following command:

"C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.6366.2068

If you get an error when trying to revert to this build, revert to the January 25 build instead:

"C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.6366.2062

For more details and screenshots see: Uninstall Office 365 Click-To-Run Updates.

A Rollup Update has been released for Outlook 2016. This is a non-security update which contains 6 documented improvements and fixes.

Most notable fixes are:

• Adds the ability to select and interact with multiple attachments in Outlook 2016.
• When you open an email message in Outlook 2016, you receive the Access Denied error message. This issue occurs because an incorrect cached token is used to access email messages if you open different email messages within 60 seconds.
• When you try to open or save an attachment that has a long file name in an email message in Outlook 2016, Outlook 2016 crashes.

View: Download information for KB3114707

Note: This update can be installed via Microsoft Update or the Update Now button when you are using Office 365 and updates Outlook to version 16.0.4339.1000 (msi-based installation) or 16.0.6366.2068 (Office 365 based installation).

A Rollup Update has been released for Outlook 2013. This is a non-security update which contains 5 documented improvements and fixes.

Most notable fixes are:

• The Communicator client crashes with an olmapi32.dll error when it integrates with Outlook 2013. This issue occurs in Communicator 2007, Communicator 2007 R2 and Lync 2010.
• When you click the To, Cc, or Bcc button to show the address book in Outlook 2013, Outlook 2013 may crash.
• When you forward or reply an HTML email message that has some images in Outlook 2013, one or more attachments or inline images may be lost.

View: Download information for KB3114500

Note: This update can be installed via Microsoft Update or the Update Now button when you are using Office 365 and updates Outlook to version 15.0.4797.1001.

A Rollup Update has been released for Outlook 2010. This is a non-security update which contains 2 documented improvements and fixes. 

• When you forward a non-delivery report (NDR) in Outlook 2010, the body of the resulting message is displayed in Chinese characters unexpectedly.
• If you select the plus signal “+” to expand a distribution list in the To field of a meeting request in Outlook 2010, Outlook 2010 may crash. This issue occurs if Outlook 2010 has a third-party add-in installed.

View: Download information for KB3114756

Note: This update can be installed via Microsoft Update and updates Outlook to version 14.0.7166.5000.