Unable to add Email Signature in Outlook on Windows 11/10 – Guide

Email signatures are a convenient way to provide contact information at the end of an email. You can create a signature in Outlook for POP, IMAP, MAPI, or Exchange email accounts. If you’re new to Outlook, here’s a quick overview of how to create a signature:

Add Signature to emails in Outlook

We’ve already looked at how to create and add an email signature in Outlook. Let’s quickly go over this process again.

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  • Open Outlook. Click FILE.
  • Then click Options on the left pane of the following window:
  • In the Outlook Options window, click the “Mail” option in the left pane. Then, click on “Signatures” in the right pane labeled “Create or modify signatures for messages.” By clicking it, you should be able to add your custom signature.

However, some users may not be able to add a custom signature window by clicking the Signatures option in the above-shown window. If you face this situation, you may want to see if the following helps you.

Unable To Add Signature in Outlook

While manipulating the registry, be careful of making mistakes that could adversely affect your system. It is better to create a System Restore Point before proceeding.

Press Windows Key + R combination, type put regedit in the Run dialog box, and hit Enter to open the Registry Editor

Navigate here:

For 32-bit installation:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{0006F03A-0000-0000-C000-000000000046}\LocalServer32

For 64-bit installation

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{0006F03A-0000-0000-C000-000000000046}\LocalServer32

In the pane on the LocalServer32 key, for strings (Default) and LocalServer32, click on them and set their Value data to:

For 32-bit Office installation on 32-bit Windows and for 64-bit Office installation on 64-bit Windows:

C:\Program Files\Microsoft Office 15\root\Office 15\Outlook.exe

For 32-bit Office installed on 64-bit Windows:

C:\Program Files(x86)\Microsoft Office 15\root\Office 15\Outlook.exe

After you are finished with this, you can close Registry Editor and restart your computer. This will fix the problem.

The path “Office 15” mentioned above will depend on your version of Office, so do check that first and make the necessary changes.

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