You need to open the HP bladesystem enclosure monitoring manager as an Administrator. Otherwise you will have the following error: “hp bladesystem enclosure monitoring manager requested registry access is not allowed” Special thanks to Shay Levy for pointing
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Read the complete post at http://scug.be/blogs/scom/archive/2011/06/01/hp-bladesystem-enclosure-monitoring-manager-requested-registry-access-is-not-allowed.aspx