In Outlook, click the File tab, and then click Options. Click Contacts , click to clear the Display online status next to a name check box under Online status and photographs , and then click OK. Warning This workaround may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses.
We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk.
If your antivirus software includes integration with Outlook, you may experience performance issues in Outlook. In this case, you can disable all Outlook integration within the antivirus software.
Or, you can disable any antivirus software add-ins that are installed in Outlook. Be aware that if you are connecting to an Exchange Server mailbox, your mailbox or your email messages are already being scanned by antivirus software on the server.
You should check with the Exchange administrator to make sure that this is the case. You may have to contact the antivirus manufacturer to determine how to configure the antivirus software to exclude any integration with Outlook or to exclude scanning in Outlook. Additionally, if you plan to perform file-level virus scanning while Outlook is being used, read the following Microsoft TechNet Library article.
Plan antivirus scanning for Outlook Windows Search in Windows 10 and Windows 8 versions indexes all data in. However, the indexing of Outlook data occurs only when Outlook is running. Therefore, you may have to leave Outlook running overnight to determine whether performance issues are related to the building of your search indexes. Performance issues may increase when Outlook is running in Online mode.
Such performance issues occur because running Outlook in Online mode increases the load on the Exchange server. This performance issue is especially noticeable when Outlook is configured in a nondefault state to index the items from the Exchange server to the local client index, and if more than one user indexes the Outlook data at the same time by using Windows Search or WDS.
To determine the indexing status for Outlook data in Outlook, follow these steps:. Click the search box above the list of email messages. The Search tab is enabled as soon as you do this. In the Indexing Status dialog box, view the number of items that remain to be indexed.
The built-in back-off mechanisms in the indexing component of Windows Search or WDS pauses the indexing of Outlook data when the system is under heavy use. The easiest way to let the indexing finish is to leave Outlook running overnight. Additionally, you can reduce performance issues by running Outlook in Cached Exchange Mode. In this mode, Windows Search or WDS searches the local copy of the mailbox instead of the mailbox content on the server. If the. Outlook cannot open the data file filename until it has been checked for problems.
This file is being checked for problems. If you receive one or more of these error messages, you may experience performance issues until Outlook finishes the reconciliation process for the. The following gear icon appears in the status bar while Outlook checks the data file in the background:. When this icon disappears, the. The reconciliation process will pause at shutdown and resume from where it was paused the next time that you start Outlook.
An incorrectly shut down. If you see this issue frequently, and you must exit Outlook shortly before you shut down your computer, it may be better to shut down Windows while Outlook is still running. We recommend that you do this instead of exiting Outlook and then shutting down Windows shortly after that. Rules that move items from the default store into another store can cause performance issues when Outlook downloads email messages.
If you are using rules to move mail from a POP3 account to another store, you can use new functionality in Outlook that lets you change the delivery location of the POP3 account. In this case, you do not have to use rules to deliver mail from that account to the separate store. To do this, follow these steps:. Click Change Folder at the bottom of the Account Settings dialog box to select a folder in the separate store to which you want to deliver that account. If you do not use a POP3 account, you can also work around this issue by setting the target folder for all rules to be in the same Outlook store.
Then, you can use the AutoArchive feature to move messages out of the default store in bulk. For more information about how to configure the AutoArchive feature, click the following article number to view the article in the Microsoft Knowledge Base:.
If you are synchronizing many RSS feeds into Outlook, you may experience performance issues when you perform certain ordinary operations. By default, all RSS feeds are synchronized automatically at set intervals.
If you have too many feeds, Outlook may become unresponsive. This lets you sync the RSS feeds on demand instead of at set intervals. Click the All Accounts option, and then click Edit. Click New , type a name for the new group, and then click OK.
Also run an online virus scan from the link given below as it sometimes cause due to virus. If you have any antivirus software installed on your computer please install the latest update for the software so that it works properly. Was this reply helpful? Yes No.
Sorry this didn't help. Thanks for your feedback. Thanks for posting in the Microsoft Answers forum! There may be a third-party software that is causing your issue. Please post back and let me know the results. Remi R. Stonefish Sep 22, at UTC. Maybe use ccleaner to see what is loaded at boot time differently from on domain to off? Good luck. View this "Best Answer" in the replies below ». Mick Sep 22, at UTC. Hey, thanks for your comments all - the solution is to be using the raft of Sysinternal tools to establish where the delays are.
As an aside, it was a poorly configured Antivirus program that was the cause. It's a crowd-sourced program that will get better as time goes by. This topic has been locked by an administrator and is no longer open for commenting.
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