Outlook 2013

  1. Select Start, select Run, type regedit in the Open box, and then select OK.

  2. Locate the registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook\Security.

  3. If a Security registry key does not exist, create a new key. To do this, follow these steps:

    1. Select the registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\15.0\Outlook.
    2. On the Edit menu, point to New, and then select Key.
    3. Type Security, and then press Enter.

  4. Right-click the Security key, select New, and then select DWORD Value.

  5. Type SupressNameChecks, and then press Enter.

  6. On the Edit menu, select Modify.

  7. Type 1, and then select OK.

  8. On the Registry menu, select Exit.

Outlook 2010

  1. Select Start, select Run, type regedit in the Open box, and then select OK.

  2. Locate the following registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\14.0\Outlook\Security.

  3. If a Security registry key does not exist, create a new key. To do this, follow these steps:

    1. Select the registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\14.0\Outlook.
    2. On the Edit menu, point to New, and then select Key.
    3. Type Security, and then press ENTER.

  4. Right-click the Security key, select New, and then select DWORD Value.

  5. Type SupressNameChecks, and then press Enter.

  6. On the Edit menu, select Modify.

  7. Type 1, and then select OK.

  8. On the Registry menu, select Exit.

Outlook 2007

  1. Select Start, select Run, type regedit in the Open box, and then select OK.

  2. Locate the registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\12.0\Outlook\Security.

  3. If a Security registry key does not exist, create a new key. To do this, follow these steps:

    1. Select the registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\12.0\Outlook.
    2. On the Edit menu, point to New, and then select Key.
    3. Type Security, and then press Enter.

  4. Right-click the Security key, select New, and then select DWORD Value.

  5. Type SupressNameChecks, and then press Enter.

  6. On the Edit menu, select Modify.

  7. Type 1, and then select OK.

  8. On the Registry menu, select Exit.

Outlook 2003

  1. Select Start, select Run, type regedit in the Open box, and then select OK.

  2. Locate the registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\11.0\Outlook\Security.

  3. If a Security registry key does not exist, create a new key. To do this, follow these steps:

    1. Select the registry key: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\11.0\Outlook.
    2. On the Edit menu, point to New, and then select Key.
    3. Type Security, and then press ENTER.

  4. Right-click the Security key, select New, and then select DWORD Value.

  5. Type SupressNameChecks, and then press Enter.

  6. On the Edit menu, select Modify.

  7. Type 1, and then select OK.

  8. On the Registry menu, select Exit.


Note: Use at your own Risk and always make a backup