Hi,

I have problems with adding additional e-mail address to my Outlook. When I open the Mail Control Panel Item, go to my Exchange Profile and add a new e-mail address I get a popup indicating that the Windows host process (Rundll32) has stopped working.

The only way of adding extra e-mail addresses is to remove my entire Outlook Profile. In the initial wizard I can add all Exchange mailboxes that I need (I have 3). After I've configured my Outlook profile I always receive the Rundll32 error. When I try to create a second Outlook profile I still get the same error.

I've tried the following:

- Repair OST file
- Repair Office -> Control Panel and Online Repair
- Reinstall Office
- Reinstall my entire PC

It doesn't matter which e-mail address I add in the initial Outlook configuration wizard. I always receive the error when I try to add a new mailbox, even when I add a mailbox that does not exist (e.g. a@b.com).

Even after reinstalling my PC I still get the same error. I'm using Windows 8.1 (x64) and Office 2013 (32-bit) on a Lenovo W540. None of my colleagues have this issue. It's a domain joined PC and we are not using Roaming Profiles.

For troubleshooting I also created a local account on my laptop but I get the same issues with this account.

• Edited by PatrickvanderWal 20 hours 32 minutes ago

Hi,

I'm also using Office 2013 32-bit and Windows 8.1 64-bit on my computer but doesn't get this issue. As you mentioned you reinstalled your PC, the first thing I suggest is to make sure your Windows and Office have been up to date.

The second thing is to make sure you are using the system with an administrator account, this ensures you the enough permission.

There is a possibility that some 3rd-party programs are interfering with "Mail", we can try to perform a clean boot to determine whether background programs are interfering with this:

1.Swipe in from the right edge of the screen, and then tap Search. Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.
2.Type msconfig in the search box, and then tap or click msconfig.
3.On the Services tab of the System Configuration dialog box, tap or click to select the Hide all Microsoft services check box, and then tap or click Disable all.
4.On the Startup tab of the System Configuration dialog box, tap or click Open Task Manager.
5.On the Startup tab in Task Manager, for each startup item, select the item and then click Disable.
6.Close Task Manager.
7.On the Startup tab of the System Configuration dialog box, tap or click OK, and then restart the computer.

If in clean boot the issue doesn't exist, the issue was probably caused by the 3rd-party programs. For further information to troubleshoot, you can refer to this kb below:

http://support.microsoft.com/kb/929135

Regards,

Melon Chen
TechNet Community Support