

For Outlook for Windows clients, another common step to improve performances is to re-create the offline Outlook Data File (.ost).If a user has numerous calendars in their “My Calendars” folder, you will see those additional connections listed here. Connection latency can be spot checked by clicking the reconnect button and observing the connection time. Here you will see the number of persistent connections utilized by Outlook. This can be done by holding Ctrl key and right-clicking the Outlook quick-launch icon in the system tray near the clock. However, administrative assistants that have a critical business need to receive shared calendar updates in real time may be adversely impacted by this setting and can have cached mode turned off if affected by calendar update latency.Ĭheck the connection status for Outlook. This will improve performance and connectivity issues for the average user. Microsoft recommends enabling cached mode in Outlook clients connected to Exchange Online. If a shared calendar is not heavily used by a user, it should be moved (you can drag and drop it in Outlook) to the “Shared Calendars” folder. These calendars are synchronized regularly while Outlook is running. Limiting the number of calendars in the “My Calendars” folder will improve Outlook performance.

Graphics acceleration can be disabled by going to File | Options | Advanced and checking the “Disable Graphics Acceleration” box. However, this feature is not compatible with all graphics cards and can actually degrade performance, cause blurry text, and cause Outlook to hang. Outlook for Windows uses graphics acceleration to improve visual performance. Review this resource to manage your add-ons. It is recommended that any add-ons not needed by the user be disabled. For example, the iCloud add-on for Outlook for Windows has had many issues since its release and should be disabled if it is not needed. Outlook add-ons can be the cause of significant performance degradation. See Office 365 - Download/Install Office 365 article for more details. We recommend that you discuss these changes with your local IT administrator prior to making these changes.įor best support and access to latest features of Office/Outlook, please make sure you are using most up-to-date version of Office/Outlook. Important: Some of the information below asks you to make changes to your software and/or usage of them. Below are some steps that may improve performance in Outlook desktop clients when configured with an Office 365 (Exchange Online) account. Heavy calendar/email users have noticed performance issues when using Outlook and other desktop clients.
