Hi @RAMESH KUMAR ,
Microsoft has documented with videos how to perform the upgrade of the MBAM infrastructure, refer to the link below:
Upgrade the MBAM infrastructure to the latest version available
https://learn.microsoft.com/en-us/microsoft-desktop-optimization-pack/mbam-v25/upgrade-mbam2.5-sp1#upgrade-the-mbam-infrastructure-to-the-latest-version-available
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Best regards,
Leon