Event details

Whether you're actively managing device security or planning your next steps, this AMA is your opportunity to connect directly with Microsoft experts and get clear, actionable guidance on updating Se...
Heather_Poulsen
Updated Jun 04, 2026
AMA
Javian's avatar
Javian
Occasional Reader
Jun 04, 2026

I work for a small company and all our rollouts for the update have gone well for user workstations, however I am having difficulty updating windows server 2016 VM's. They are returning an error:

"The Secure Boot update failed to update a Secure Boot variable with error The parameter is incorrect." Event ID 1796
I have not been able to find a solution for this as it is so vague, are there any troubleshooting steps to take to identify the actual problem?

  • Karl-WE's avatar
    Karl-WE
    MVP
    Jun 09, 2026

    I'd like to suggest open a support ticket.

    https://support.microsoft.com/support-for-business

    However WS 2016 and WS 2019 are no longer in full support (mainstream support). 
    One may expect Secure Boot compatibility and updates even in extended support phase.

    Severity B+ (24/7) is fairly justified given the security impact and soon expiration / time to solution or remediation cannot take too long. Usual Sev B and C the traction is super slow.

  • mihi's avatar
    mihi
    Iron Contributor
    Jun 04, 2026

    dupe, answered there.