Outlook 2007 Error – Default Mail Client

Asked By 20 points N/A Posted on -

This comes with a Windows 2008 x 64 SP2 Terminal server. The error we were receiving while users explore outlook was:

Also there is no failure to pay mail client or the latest mail client can not accomplish the messaging demands.

Please run Microsoft Office Outlook and place it as the default mail client.

While you click on OK button, it next allows you into Microsoft Outlook.

Microsoft Office Outlook Error

Microsoft Office Outlook

Either there is no default mail client or the current mail client cannot fulfill the

Messaging request. Please run Microsoft office Outlook and set it as the

Default mail client.

What should I do in this situation?

Best Answer by Lynda M Harvey
Best Answer
Best Answer
Answered By 0 points N/A #173727

Outlook 2007 Error – Default Mail Client


There are many reasons for this error to occur. If the Outlook registry key is corrupted.

Follow these steps to repair the registry key.

1. Type regedit in the run and press enter.

2. Go to the following subkey in the registry:

 HKEY_LOCAL_MACHINESoftwareClientsMailMicrosoft Outlook

3. Delete this key.

Now run outlook in repair mode to create the above deleted key in registry.

1. Open outlook.

2. Go to control panel a program and features select Microsoft office 2010.

3 Click on change button. Click Repair

Set Outlook 2010 as the default e-mail client

1. Click Start.
2. Type "default programs" in the Search box.
3. Select Set your default programs.
4. Select Microsoft Outlook on the left.

Select Microsoft Outlook on the left

5. Click Set this program as default.

6. Click OK.

7. Create new window user and try to run the outlook.

If outlook runs successfully then there is some problem with the old user files. Copy all the necessary user files from new user account with old user and then run outlook.

Run Outlook program in safe mode.

1 Click start and select Microsoft outlook.
2. Press and hold the CTRL key, and open outlook. You will get the below message.

Microsoft Office Outlook

Microsoft Office Outlook

Outlook has detected that you are holding down the CTRL key. Do you

Want to start Outlook in safe mode?

                                                                  Yes                        No

Click yes to run outlook in safe mode. If outlook runs successfully in safe mode that means this problem is due to some third party add-ins. Disable all the third party add-ins in outlook and then try to run outlook.

Answered By 90 points N/A #173728

Outlook 2007 Error – Default Mail Client


Hi there Helen S Davidson,

When the outlook registry key is corrupted this problem occurs.

So in order to avoid this follow these steps.

Step 1 – Go to Start > Run > type regedit and enter.

Step 2 – Find this path.

HKEY_LOCAL_MACHINESoftwareClientsMailMicrosoft Outlook

The Sub key and press delete

Step 3 – Select the Sub key and press delete.

Step 4 – Open outlook as normally.

Hope this helped you.

Taylor B Campos.

Thank You.

Answered By 0 points N/A #173729

Outlook 2007 Error – Default Mail Client


Hello Helen

With these solutions also you can solve this issue by following another way. Go this Techyv page to get more way.

Error sending emails to third-party programs in Outlook 2010


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