The spnsrvnt.exe process is at 100% CPU usage.
The spnsrvnt.exe process can sometimes become corrupt by a computer virus or the anti-virus software may detect this process as being infected.
Solution or Workaround
ArcGIS and the ArcGIS License Manager do not use the spnsrvnt.exe process, so it can be removed.
- Open Add/Remove programs from the Control Panel.
- Find the Sentinel Protection Installer, select it, and click the Change button.
- Select Modify and click the drop-down box next to Sentinel Protection Server. Select the Red X "This feature will not be available".
- This removes the spnsrvnt.exe process. Once finished, go ahead and reboot the machine so the changes can be applied.