=====Outlook Social Connector creates {GUID}.html files in Temporary Internet Files=====
When the Outlook Social Connector is active, it will create {GUID}.html file in your Temporary Internet Files. \\
These files then show up in your Internet Explorer History.

If you don't want the .html files to be created and you don't need the Social Connector, you can disable the add in 

Sources: \\
[[http://greencm.blogspot.com/2010/05/outlook-2010-social-connector-security.html|Rational Expectations - Outlook 2010 + Social Connector + Security Zones]] \\
[[http://answers.microsoft.com/en-us/office/forum/office_2010-outlook/when-i-open-outlook-2010or-hit-send-receive-a/86af110b-122b-4cbc-adbf-1131b12c80ed|Microsoft Answers - When I open Outlook 2010,or hit send/ receive, a blank tab opens in Firefox.]] \\
[[http://answers.microsoft.com/en-us/office/forum/office_2010-outlook/outlook-2010-social-connector-causes-html-temp/ca7bb431-a0da-4f64-8362-7ce31d86793f|Microsoft Answers - outlook 2010 Social Connector causes html temp file pop up]] \\
[[http://social.technet.microsoft.com/Forums/en/outlook/thread/842828e8-a420-4e63-b853-9b89d2e9b212|Office > Microsoft Office Forums > Outlook IT Pro Discussions > Outlook Connector and News Feed folders]] \\
[[http://www.experts-exchange.com/Software/Office_Productivity/Groupware/Outlook/Q_26824427.html|Experts Exchange - Outlook 2010 creates temp files that appear in the IE Favorites History]] \\

=====Outlook 2010: "The operation failed. An object could not be found" when searching a shared mailbox=====
Scenario: \\
An Outlook 2010 SP2 client within an Exchange Server 2010 or 2013 environment.

After installing updates after Februari 2015 (specifically [[http://support2.microsoft.com/kb/2956128/en-us|KB2956128]]) whenever you try to search a shared mailbox (or contact list) you get the error:"The operation failed. An object could not be found". The Outlook version after the KB2956128 update is 14.0.7143.5000.

Workaround: \\
Uninstall KB2956128.

Source: [[https://social.technet.microsoft.com/Forums/en-US/af1df139-e8f4-4950-9f6d-147e21c40f92/ol2010search-problems-after-install-kb2956128?forum=outlook|OL2010:Search Problems after install KB2956128]] \\


=====Disable MailTips in Outlook 2010=====

====GPO====
There is no GPO setting for Outlook 2010 to disable all access/use of MailTips in Outlook 2010.

====Registry====
<code>
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Options\Mail]
"DisableMailTips"=dword:00000001

</code>

Source: [[https://social.technet.microsoft.com/Forums/exchange/en-US/a9d1aaa9-2c97-4a4e-a4d2-73d9612b9fc6/disable-mailtips-query-in-outlook-2010-completely?forum=exchangesvrclientslegacy|Exchange TechCenter Forum - Disable MailTips query in Outlook 2010 completely]]

=====Color Categories in a shared mailbox don't show on all RD servers=====
When color categories for a shared mailbox do not always show all categories in a Remote Desktop Server environment it can be necessary to delete the cache files:

  - Close Outlook.
  - Go to %localappdata%\Microsoft\Outlook\RoamCache\.
  - Delete all Stream_CategoryList_*.dat files.
  - Start Outlook.