Microsoft Entra | Update to default sign-in background for Work or School accounts

We’re updating the default background image on Microsoft Entra sign-in screens for Work or School accounts. This visual refresh is designed to reduce distractions, improve focus during sign-in, and align with Microsoft’s modern Fluent design language, creating a more consistent and trusted authentication experience across Microsoft services. When this will happen: General Availability (Worldwide, GCC, GCCH, and DoD): We will begin rolling out late September 2025 and expect to complete by early October 2025. How this will affect your organization: This is a visual-only interface update and does not impact sign-in functionality. The new background will appear only on screens where company branding is not configured or where users are directed to a default sign-in experience.  Tenants without a custom background configured: The new background will appear on all authentication screens. Tenants with a custom background configured: No change will be seen where a tenant ID or domain hint is present in the URL. The new background may appear when users access login.microsoftonline.com without a domain hint or custom URL. Entra External ID tenants:  No changes will be applied. Current default background image New default background image What you need to do to prepare: No action is required. The update will be applied automatically. We recommend updating internal documentation and notifying your help desk to reduce potential confusion. To change the default background, consider configuring a custom background image via company branding. If you have configured a custom background image in company branding for your tenant, there will be no change for your users. Admin controls screenshot for uploading a custom background in company branding settings: Learn more:  General Availability – Update to Microsoft Entra Work or School Default Background Image | Microsoft Learn Default background image | Microsoft Learn