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If Use the following steps if you are monitoring a Windows 2003 server or higher, and you noticed the up.time Agent Service (uptmagnt.exe*32) spikes the CPU usage to 50% or more.

To resolves this issue

1. Check to see that you have the most recent version of the Windows up.time agent - Available (available on the Downloads page (login required).
2. Update and add the following registry records on the Windows server that is experiencing the issue.:
   • Updating and adding registry entries for 'Maxclients' and 'SkipPdhRecache'
     1. Open Windows regedit.
     2. Search the registry tree and locate:
        HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\uptime software\up.time agent
     3. Edit the "Maxclients" registry record and set it to 1.
        Example:
        HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\uptime software\up.time agent\MaxClients=1

...

1. • 1. Add a new registry record called "SkipPdhRecache" as D_WORD and set it to 1.
        Example:
        HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\uptime software\up.time agent\SkipPdhRecache=1

...

1. • 1. Restart the up.time agent service for the changes to take effect.