Fix Office 365 Repeated Sign-In Prompts in FSLogix and VMware Horizon
Question details
Users are continuously prompted to sign in to Office 365 after logging off or restarting their virtual machines because FSLogix is not preserving the authentication data.
- Product
- Office 365 / FSLogix
- Device & OS
- not provided
- Scenario
- Using Office 365 within a VMware Horizon virtual desktop environment managed by FSLogix profile containers.
- Observed behavior
- Office 365 works perfectly during the active VMware Horizon session, but prompts the user to authenticate again upon the next login, indicating profile data is lost.
Verify that your FSLogix profile containers are properly attached upon user login and that you have administrator access to review domain Group Policy Objects (GPOs) related to Office 365.
Consult the Microsoft FSLogix Community on Q&A
Because this issue involves complex profile configurations and authentication data retention in a VDI environment, reaching out to dedicated FSLogix engineers is the most effective approach.
Authentication data preservation in a VMware Horizon environment requires specific handling by FSLogix. If standard configurations fail, the Microsoft Q&A community is the official channel for advanced diagnostic support.
Navigate to the official Microsoft Q&A website using your web browser.
Click the 'Questions' tab and filter by the 'FSLogix' tag to access the dedicated community of engineers.
Click 'Ask a question' and detail your issue, making sure to include your VMware Horizon version, FSLogix version, and Office 365 build details.
Verify FSLogix Office Container Configuration
Ensure that your FSLogix environment is properly configured to roam Microsoft Office authentication tokens without excluding critical identity folders.
Tired of Complex Virtual Desktop Office Configurations? Try WPS Office
Deploying Office 365 in VDI environments like VMware Horizon with FSLogix can lead to frustrating authentication and roaming profile issues. WPS Office offers a free, lightweight alternative that simplifies deployment, avoids complex activation hurdles, and works seamlessly out of the box.
- 1. Download WPS Office: Visit the official WPS website and click 'Free Download' to get the installer for your virtual machine.
- 2. Install on Your VDI Master Image: Run the installer on your VMware Horizon master image to make it available to all virtual desktop users.
- 3. Edit Documents Instantly: Launch WPS Office and directly open Microsoft Word, Excel, or PowerPoint files without recurring activation prompts.

Frequently Asked Questions
Why does Office 365 not remember my password on VMware Horizon?
In non-persistent VDI environments, if profile management tools like FSLogix are not configured correctly, the Windows Credential Manager or specific AppData folders containing Office 365 authentication tokens are destroyed at logoff.
Does FSLogix support roaming Office 365 activation?
Yes, FSLogix Office Profile Containers are designed to roam Office 365 cached data and activation tokens, but they require specific Group Policy configurations and Shared Computer Activation to function properly.
Can I use Shared Computer Activation for Office 365 in VMware?
Yes, Shared Computer Activation (SCA) is highly recommended and often required for Office 365 in shared VDI environments like VMware Horizon to prevent users from exceeding their activation limits across different sessions.




