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Can you help us improve? Resolved my issue. Clear instructions. Easy to follow. No jargon. Pictures helped. For more information about the latest applicable updates, see the following article in the Microsoft Knowledge Base:.
If you have a large. These typical operations include reading, moving, and deleting email messages. When you use Outlook, the following. Between 5 and 10 GB: This file size is typically hardware-dependent. Therefore, if you have a fast hard disk and lots of RAM, your experience will be better. However, slower hard disk drives, such as drives that are typically found on portable computers or early-generation solid-state drives SSDs , experience some application pauses when the drives respond.
More than 10 GB: When the. Very large 25 GB or larger : An. In Outlook and later versions, the maximum size for a. The default maximum size for a Unicode. The following Microsoft Knowledge Base article describes how to increase the maximum size of a. If you have lots of items in any single folder, you may experience performance issues during certain operations in Outlook while you use local data files.
These performance issues are especially noticeable when you switch into and out of folders that contain many items. If you have more than , items in a single folder in Outlook and later versions, views other than Arrange By: Date can be slower.
We recommend that you move several items in these larger folders to separate folders in the same store or to an archive store and that you use Arrange By: Date when you run Outlook. For more information, click the following article number to view the article in the Microsoft Knowledge Base:. If you are not using Cached Exchange mode, you should review one of the following resources.
These resources document some performance issues on an Exchange server that has high item counts and restricted views.
Additionally, the resources discuss how these performance issues might affect the overall client user experience. For information about the performance effect of high item counts and restricted views, go to the following Microsoft websites:. If you have nonessential add-ins installed, you may want to remove them from Outlook.
To view the add-ins that are installed, follow these steps:. Any other add-ins that are listed under COM add-ins were installed by other software. To determine whether the performance problem is caused by add-ins, run Outlook in Safe mode. To do this, press and hold Ctrl when you start Outlook.
If the problem no longer occurs when Outlook is running in Safe mode, it is likely that one of the add-ins is causing the performance issue. To troubleshoot possible problems that are caused by COM add-ins or Exchange Server client extensions, disable any items that you do not use regularly.
Then, restart Outlook. If that does not resolve the problem, disable the remaining add-ins one by one. If that does not resolve the problem, the issue may not be caused by an add-in. To disable COM add-ins, follow these steps:. Important Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.
Outlook stores certain data, such as email signatures and the spelling checker dictionary, in the AppData folder. If the network is performing slowly, Outlook must wait for read and write operations to the AppData directory to finish. To disable redirection of the AppData directory, follow these steps:. Start Registry Editor.
To do this, use one of the following procedures, as appropriate for your version of Windows:. Windows 10, Windows 8. Type regedit. In the Value data box, type the following path, and then click OK. By default, Outlook includes feature integration with Microsoft Skype for Business. The features that Outlook and Skype share relate primarily to presence information such as whether someone is busy, away, or in a meeting. To disable feature integration, follow these steps:. 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. Pelly I have been trying to troubleshoot this problem for a couple of days now. I am running outlook w sp3, I have been getting error message 0xccc7d when I try to transmit mail. I have 2 profiles, and neither one of them is working. I have deleted profiles and recreated them. This will usually allow Outlook to send out, but as soon as I add an attachment, Outlook will crash.
I have deleted Office and reloaded. Same problem.
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