DNS Client - Windows 10 Service
The DNS Client service (dnscache) caches Domain Name System (DNS) names and registers the full computer name for your computer. If the service is stopped, DNS names will continue to be resolved. However, the results of DNS name queries will not be cached and the computer's name will not be registered. If the service is disabled, any services that explicitly depend on it will fail to start.
This service also exists in Windows 11, 8, Vista and XP.
Startup Type
| Windows 10 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 1507 | Automatic | Automatic | Automatic | Automatic |
| 1511 | Automatic | Automatic | Automatic | Automatic |
| 1607 | Automatic | Automatic | Automatic | Automatic |
| 1703 | Automatic | Automatic | Automatic | Automatic |
| 1709 | Automatic | Automatic | Automatic | Automatic |
| 1803 | Automatic | Automatic | Automatic | Automatic |
| 1809 | Automatic | Automatic | Automatic | Automatic |
| 1903 | Automatic | Automatic | Automatic | Automatic |
| 1909 | Automatic | Automatic | Automatic | Automatic |
| 2004 | Automatic | Automatic | Automatic | Automatic |
| 20H2 | Automatic | Automatic | Automatic | Automatic |
| 21H1 | Automatic | Automatic | Automatic | Automatic |
| 21H2 | Automatic | Automatic | Automatic | Automatic |
| 22H2 | Automatic | Automatic | Automatic | Automatic |
Default Properties
| Display name: | DNS Client |
| Service name: | Dnscache |
| Type: | share |
| Path: | %WinDir%\system32\svchost.exe -k NetworkService -p |
| File: | %WinDir%\System32\dnsrslvr.dll |
| Error control: | normal |
| Group: | TDI |
| Object: | NT AUTHORITY\NetworkService |
| Privileges: |
|
Default Behavior
The DNS Client service is running as NT AUTHORITY\NetworkService in a shared process of svchost.exe. Other services might run in the same process. If DNS Client fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the Dnscache service has failed to start.
Dependencies
DNS Client is unable to start, if at least one of the following services is stopped or disabled:
- Ancillary Function Driver for Winsock
- NetIO Legacy TDI Support Driver
- Network Store Interface Service
If DNS Client is stopped, the following services cannot start:
Restore Default Startup Type of DNS Client
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreDNSClientWindows10.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the dnsrslvr.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 10 installation media.