unable to edit my signature in Outlook 2013

Hi Peter,

I understand how it feels when you are unable to edit or use the signature in Outlook. Let me help you with the issue.

I would need some more information before we proceed with the troubleshooting:

What is the type of email account configured on Outlook (POP3/IMAP/Exchange Active Sync or Exchange Server)?

Are the options grayed out or just not responding?

Does the signature contain any image?

Are you able to create new signatures with the same content?

What changes were made to the registry editor?

Provide more details to assist you better.

Meanwhile, you may delete the signature file from the following location:

Note: Ensure to back up all the files from the folder before deleting them.

C:\Users\<User name>\AppData\Roaming\Microsoft\Signatures

Also you may delete the following registry key and check if the issue occurs:

HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\MailSettings 

Disclaimer: Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, follow these steps to back up the registry:

http://windows.microsoft.com/en-us/windows7/Back-up-the-registry

Let us know the details and results to assist you better.

Hello Arvinda,

Thanks for your reply, in response to your questions

We use a hosted Exchange Server

The buttons are not greyed out, there is no response

I have a signature at the moment which needs editing and it does contain an image, this is a .png

We are not able to create nor edit signatures

These are the changes made to the registry

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

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

Both these values have been changed to

C:\Program Files (x86)\Microsoft Office\Office15\Outlook.exe

Strangely enough I am unable to find the registry key you have mentioned so am not able to delete it.

Regards,

Peter

You don't need to delete that other reg key - it controls the defaults for email, not signatures.

Did you restart Outlook after changing those two keys? Does the Signature & Fonts button work? You may also need to empty your temp folder.

If you just need to edit the signature, you can use a text editor to edit the HTML, word to edit the RTF, and can edit the image directly. Type of paste %appdata%\Microsoft\signatures in the address bar of windows explorer and press Enter. If you use a different png, change the dimensions in the HTML file too.

If signatures aren't added to your messages automatically, it's a different problem. 

Yeah, restart = close and reopen.

Is anything else acting weird? Do the other buttons in Options work?

Does it work in Safe mode?

To open Outlook in Safe mode: Close Outlook then hold Ctrl as you click on the Outlook icon. You'll get a message asking if you want to start in Safe mode. Click Ok.