How to Update an Old Display Name in Outlook and Exchange
Question details
Users need to update an outdated display name that continues to appear when recipients search for an email address.

- Product
- Microsoft Outlook / Exchange
- Device & OS
- not provided
- Scenario
- A user's old display name persistently shows up when sending emails or searching the directory.
- Observed behavior
- The outdated name remains visible due to cached offline address books, outdated account display-name settings, or unsynced Exchange directory data.
Verify whether you are using a standard email account or an enterprise Microsoft Exchange account, as Exchange accounts require administrator permissions to change display names.
Refresh the Offline Address Book in Outlook
Force Outlook to download the latest directory data to resolve issues caused by a cached address book.
Often, a display name has already been updated on the server, but Outlook is still using an outdated, cached version known as the Offline Address Book (OAB). Downloading the latest address book manually will sync the new details to your local client.
Open Microsoft Outlook and click on the 'Send/Receive' tab located in the top ribbon.
Click on the 'Send/Receive Groups' dropdown menu.
Select 'Download Address Book...' from the list of options.
In the dialog box that appears, ensure 'Download changes since last Send/Receive' is unchecked to force a full update, then click 'OK'.

Update Display Name in Outlook Account Settings
Modify your display name directly within Outlook's account settings for non-Exchange email accounts (like POP3 or IMAP).
Update Exchange Display Name via PowerShell
For Exchange Administrators, use Exchange Online PowerShell to forcefully update a user's display name at the server level.
Switch to WPS Office for a Seamless Productivity Experience
While Microsoft Outlook manages your emails, WPS Office provides a completely free, lightweight, and highly compatible alternative to Microsoft Office for opening and editing all your email attachments.
- 1. Download WPS Office: Visit the official WPS website to download the free installation package for your operating system.
- 2. Install the Suite: Run the setup file and follow the quick installation prompts to add WPS Office to your device.
- 3. Open Email Attachments Easily: Set WPS Office as your default application to instantly open document attachments right from your Outlook inbox.

Frequently Asked Questions
Why does my old display name still appear after I updated it?
Outlook often relies on a cached Offline Address Book (OAB) to load contact information quickly. If this cache hasn't synced with the server yet, the old name will persist. You can fix this by manually downloading the latest address book via the Send/Receive tab.
Can I change my Exchange display name without admin rights?
No. If your email account is hosted on an enterprise Microsoft Exchange server, only your IT or Exchange Administrator has the administrative privileges required to modify your display name.
How long does it take for a global address list to update my new name?
Once an administrator updates your name on the Exchange server, it typically syncs to the Global Address List (GAL) quickly. However, it can take between 24 to 48 hours for the new GAL to be downloaded automatically to all offline Outlook clients in your organization.




