Installing New Teams MSIX on master images fails with “Parameter Incorrect” due to UNC path handling.
Symptom Matrix:
Error 0x80070057, Reason: Insecure URI, Log: AppxDeployment.
Architectural Root Cause:
The bootstrapper cannot parse URIs when the source package resides on a network share with specific security headers.
Surgical Fix:
Copy MSIX locally to C:\Temp and use teamsbootstrapper.exe -p -o “C:\Temp\MSTeams-x64.msix”.
Master Image bloat kills logon speed. [Optimize your Golden Image build with an Audit]
About the Author: Jabran Malik
Jabran Malik is a Principal Digital Workspace Architect and the Founder of EUC Global. With over 30 years of experience, he designs high-performance VDI platforms for clients worldwide, leveraging deep expertise across the Citrix, VMware, and Microsoft Azure ecosystems. He excels at translating complex business challenges into strategic solutions that enhance productivity and elevate the user experience.
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