Note
Indexing within Outlook, particularly when you are running the app on older versions of Windows with Microsoft Windows Desktop Search installed, really gives rise to slow Outlook performance. So, disable Indexing in Outlook by navigating to Tools - then Options - switch to Preferences tab - select Search options.
- In this post, we cover solutions to fix this issue Outlook Slow or Outlook Running low performance while sending or receiving emails in Outlook 2007, 2010, 2013, 2016, and 2019. Outlook works smoothly when set up on a compatible system.
- Microsoft Outlook is upgraded from version 2013 to version 2016; Windows operating system (on which Outlook is installed) is updated to Windows 10; The following solutions can help if your Outlook 2016 is running slow on Windows 10: Update Outlook with Service Packs: Microsoft releases service packs for Outlook and Windows. Not installing these.
- While there are a few different symptoms indicating that Microsoft Office isn’t doing its best, such as a painfully slow opening of a program or Microsoft Word slow typing, the question stands: why is Microsoft Word so slow? There are a variety of reasons Microsoft Office may run slowly, freeze, or cause the much-dreaded typing lag.
Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.
Symptoms
When you try to open a file from a network location in one of the Microsoft Office programs such as PowerPoint 2003 , Excel 2003, Publisher 2003 or a later version of them, the Office program may run very slowly or may appear to stop responding (hang).
Cause
This behavior may occur if the connection to the network location is lost during the time that your Office program is opening the file.
Workaround
Important
This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, see How to back up and restore the registry in Windows.
To work around this behavior, add the EnableShellDataCaching value to the Microsoft Windows registry. To do this, follow these steps:
Close your Office programs.
Click Start, and then click Run.
In the Open box, type regedit, and then click OK.
Locate, and then click to select one of the following registry keys accordingly:
Office 365, Office 2019 and Office 2016:
HKEY_CURRENT_USERSoftwareMicrosoftOffice16.0CommonOpen Find
Office 2013:
HKEY_CURRENT_USERSoftwareMicrosoftOffice15.0CommonOpen Find
Office 2010:
HKEY_CURRENT_USERSoftwareMicrosoftOffice14.0CommonOpen Find
Office 2007:
HKEY_CURRENT_USERSoftwareMicrosoftOffice12.0CommonOpen Find
Office 2003:
HKEY_CURRENT_USERSoftwareMicrosoftOffice11.0CommonOpen Find
After you select the key that is specified in step 4, point to New on the Edit menu, and then click DWORD Value.
Type EnableShellDataCaching, and then press ENTER.
Right-click EnableShellDataCaching, and then click Modify.
In the Value data box, type 1, and then click OK.
Note
Any non-zero number in the Value data box will turn on caching. A zero number or blank (default) will turn off caching.
On the File menu, click Exit to quit Registry Editor.
Did this fix the problem?
Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support.
More information
This situation may occur after you click Open in the Open dialog box (on the File menu, click Open) to open a file from a network location (for example, a network server). During the process of opening the file, you lose your network connection or the network location that contains the file that you are trying to open goes down. During the process of opening the file, your Office program tries to add the file name and the path information of the file that you are trying to open to the Windows recent file list. Because the network location (path) does not now exist, the Office program may run slowly and may appear to stop responding (hang).
Microsoft Outlook Running Slow On Mac
Note
Why Does Outlook Run So Slow On My Mac
This situation may also occur if your connection to your network is slow because your Office program has to make multiple queries to the network to obtain the correct file information.