The fdhost.exe process is the process file for FilterDaemon Host, a Full Text search engine, has two divisions of processes – the Search process (msftesql.exe), and the Filter Daemon (msftefd.exe) – that interact with the Server. The search engine has the indexer and the full text processors. The indexer creates indexes for the full text searches, scans the database text columns, and indexes binary columns (in cases of unstructured Word document being stored, for example). The Filter Daemon uses the iFilters to extract the meaningful texts from the document and, once extracted, are broken up into words sequence, and handed back to the indexer, which will filter out noise or un-useful like the words “A”, “And”, etc. The remaining words are indexed with associated words, and gathered for sectioning by the built-in thesaurus according to word variants and accurateness, and are then monitored for the next update. The SQL Server stores these results for the next set of processes.

Most non-system processes that are running can be stopped because they are not involved in running your operating system. fdhost.exe. is used by Filter Daemon Host, If you shut down fdhost.exe, it will likely start again at a later time either after you restart your computer or after an application start. To stop fdhost.exe, permanently you need to uninstall the application that runs this process which in this case is Filter Daemon Host, from your system.

After uninstalling applications it is a good idea to scan you Windows registry for any left over traces of applications. Registry Reviver by ReviverSoft is a great tool for doing this.

The ReviverSoft experts have not yet reviewed fdhost.exe

A process usually a part of an installed application such as Filter Daemon Host, or your operating system that is responsible for running in functions of that application. Some application require that they have processes running all the time so they can do things such as check for updates or notify you when you get an instant message. Some poorly written applications have many processes that run that may not be required and take up valuable processing power within your computer.

We have not received any complaint about this process having higher than normal impact on PC performance. If you have had bad experiences with it please let us know in a comment below and we will investigate it further.

The first thing you should do if fdhost.exe. is causing errors on your computer is to run a Windows registry scan with Registry Reviver If you are still seeing errors after this you should uninstall the program that fdhost.exe, belongs to, in this case Filter Daemon Host