Guidelines To Troubleshoot Outlook 2007 Performance Issues 

Apart from being so popular and widely used , there are lots of other issues that can be created because of some circumstances. Sometimes, you may some issues related to its performances. It may become unresponsive or can stop responding for a long time. Here, we are going to troubleshoot all the issues related to performances related to Outlook 2007.


There can be various reasons that can be responsible for arousing of this issues.

  • Deficient computer specifications
  • Third-party add-ins
  • Not installing Outlook 2007 latest service pack.
  • Big Personal Folders files (.pst) or Offline Folder files (.ost)
  • To-Do Bar and Online mode with Exchange server
  • Battered Outlook messaging profile
  • Outlook .ost files or .pst files that are stored on a drive with insufficient write performance
  • Redirection of AppData folder to a network location
  • Gadgets that access Outlook data (This only applies to Windows Vista)
  • Integration of Microsoft Office Communicator
  • Antivirus software interaction
  • Windows Desktop Search indexing
  • Partial closure of .pst files or .ost files
  • Many Really Simple Syndication (RSS) feeds
  • Windows Vista clients
  • Having POP3 accounts

How to troubleshoot Outlook 2007 performances issues.

Method 1 : Make sure that your system meet the minimum requirements for the Outlook 2007?

This issues sometimes happens when your system if not fulfilling all the requirements for the 2007 Microsoft Office suite. So, primarily be sire for that. At least minimum requirements should be fulfilled by your system in order to get optimal performances.

Method 2 : Be sure that you are using latest version of Outlook 2007?

After the release of Outlook 2007 to manufacture (RTM), Performance improvements were improved. That’s why, in order to get better performances, make sure that you are using Outlook’s latest built.

Method 3 : Having large .pst file or a large .ost file?

In case, if you have have and bulky .pst file or a large .ost file, you will feel application pauses while performing any typical operations like reading e-mail messages, deleting e-mail messages or moving e-mail messages. While using Outlook 2007 with the Performance Update, or Outlook 2007 SP1 versions of before February 2009 cumulative update, the given guidelines applies generally.

Up to 2 GB : It should render good experience to you on most hardware.

Between 2 GB and 4 GB : It’s typically a hardware dependent. So, if you have a fast hard disk and enough RAM, no doubt, you will get better experience. On the same side, slower hard drives like which found on portable computers or primal generation solid state drives (SSDs), you may experience little application pauses while responding the drive.

More than 4 GB : At this stage, some short pauses may begin to occur on almost all hardware.

10 GB or larger : No doubt, this size will increases the oftenness of the short pauses, especially when downloading any new e-mail

Method 4 : Having items in a single folder?

If you are using .ost or .pst files and having in a single folder along with in large number, then you will experience various issues related to performances specially while performing certain operation and using local data in Outlook.

I you may experience performance issues during certain operations in Outlook when you use local data files. performance issues are especially perceptible when switching into and out of folders that holds large number of items. If you keeps more than 50,000 items in a single folder, might be this problem encountered. So, it’s better to move several items of these larger folders into some separate folders in the same store or to an archive store. Further arrange them by date.

Method 5 : make sure that you don’t have any nonessential add-ins or out-of-date add-ins installed in Outlook?

If having nonessential add-ins installed, then just eliminate them from Outlook. You can view the add-ins that are installed, by

  • Open Outlook and click Trust Center on the Tools menu.
  • Go to Add-ins. It will generate list of all the COM add-ins which are installed.

All the default, COM add-ins are included in the 2007 Office system includes :

  • Microsoft Access Outlook Add-in for Data Collection and Publishing
  • Microsoft Office SharePoint Server Colleague Import Add-in
  • Windows Search E-mail Indexer
  • Microsoft VBA for Outlook Add-in
  • OneNote Notes about Outlook Items
  • Microsoft Exchange Unified Messaging
  • Microsoft Office Outlook Mobile Service
  • Microsoft Office Groove Proxy for Outlook Add-in

Apart this, any of other COM add-ins which you saw in the list, is typically installed by other software. Although, Outlook can also use Microsoft Exchange Server client extensions due to which performances issues may be caused. In order to view them, follow

  • Go to Exchange Client Extensions available in the Manage list of the Add-ins section.
  • Click Go.
  • Add-In Manager dialog box will appeared which will display list of all Exchange Server client extensions which is installed presently.

Apart this, the default Exchange Server client extensions which are included in the 2007 Office system are :

  • Delegate Access
  • Deleted Item Recovery
  • Exchange Extensions commands
  • Exchange Extensions property pages
  • Any other extensions that are listed in the Add-In Manager dialog box were installed by other software.

You can find out whether the performance problem is causing by add-ins or not. For this, run Outlook in safe mode. In order to perform this, press and hold CTRL while starting Outlook. And when Outlook starts in safe mode, all COM add-ins and Exchange Server client extensions will be disabled.

And after doing all these, if the problem goes away, it means it is likely that one of the add-ins is causing the performance issue. Now, in order to troubleshoot accomplishable problems which are causing due to COM add-ins or Exchange Server client extensions, you have to disable the items that you do not use daily. Then after restart Outlook. Problem still remains same, then disable remaining add-ins one by one. And after doing all that, if you are still facing performances issues, it means add-in is the cause for happening this issues.

How to disable COM add-ins.
  • Go to Tools menu and click Trust Center.
  • Select Add-ins and click COM Add-ins in the Manage lis.
  • Select “Go”.
  • Now, from the COM Add-Ins dialog box, clear the check boxes for any COM add-ins to which you wish to disable.
  • After that, click OK. Further, restart Outlook.
How To disable Exchange Server client extensions.
  • Go to Tools menu and click Trust Center.
  • Select Add-ins and click Exchange Client Extensions in the Manage list. Click Go.
  • Now from the Add-In Manager dialog box, click to clear the check boxes of the extensions to which you need to disable.
  • Click OK and reboot Outlook.

Apart, this there can be various reasons that can be responsible for the Outlook 2007 performances issues. And it’s really very difficult to go through manual methods since it requires good knowledge of system files and folders. Also, it somewhat time taking and slow process. So, it’s better to go through any powerful and effective software that can easily handle all such type off issues. Regarding this purpose, PST Repair Software is the ideal one. You must go through it.