What does cidaemon.exe do? If
you use Microsoft Indexing Service, cidaemon.exe might explain the high
CPU utilization. This process builds and updates the Index catalog and
typically uses a lot of CPU time. However, cidaemon .exe is also set to
run at a low priority, so it usually doesn't degrade the performance of
the system even if it's at a high CPU level. Source
Filtering component coordinates filtering of files. Its output is
called a word list. This component is called by the Indexing component.
The CiDaemon.exe file contains the Filtering component. One executing
instance of CiDaemon.exe exists for each Indexing Service catalog.
Virus Precautions: You'll want to keep an eye on this google search for any known viruses. The normal location of cidaemon.exe is C:\WINDOWS\system32\cidaemon.exe If its not running in that location you'll want to reference some virus DBs and/or scan for viruses.