Command execution failed: The process does not possess the ‘SeSecurityPrivilege’ privilege which is required for this operation

Error:- You try to Request and Install Lync server Certificate using deployment wizard and get the below error while assigning the certificate to Web Services Internal, External and Default and get below error

Command execution failed: The process does not possess the ‘SeSecurityPrivilege’ privilege which is required for this operation

Cause:- The reason is you do not have appropriate access to assign the certificate to given lync services.

Other Information:- Open GPEDIT.MSC in the lync server and go to Computer Configuration > Windows Settings > Security Settings > Local Policies > User Rights Assignment

Check the setting “Manage Auditing and Security Logs”, you will see Local Administrators Group missing here.

Solution:- Add local Administrators group here locally or using Group Policy, run gpupdate /force, logoff user and relogin and try again.

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