Safe
Free

Windows System Components

Published by Microsoft

Core Windows system DLLs that are part of the operating system. These files should not normally be replaced manually.

Why You Need This

System DLLs like kernel32.dll, ntdll.dll, and user32.dll are core Windows components. If these are missing or corrupted, you should run Windows System File Checker (sfc /scannow) or repair your Windows installation rather than downloading individual files.

DLLs Included (4795)

SensorsNativeApi.dll x64
125.45 KB
SensorsNativeApi.dll x86
89.8 KB
SensorsNativeApi.V2.dll x64
278.76 KB
SensorsNativeApi.V2.dll x86
228 KB
SensorsUtilsV2.dll x64
194.03 KB
SensorsUtilsV2.dll x86
142.75 KB
sensrsvc.dll x64
192 KB
serialui.dll x64
40 KB
serialui.dll x86
15.5 KB
servercoreshelllauncherevents.dll x64
28 KB
servicemodelevents.dll x64
18.05 KB
servicemodelevents.dll x86
18.05 KB
servicemodelinstallrc.dll x64
18.05 KB
servicemodelinstallrc.dll x86
18.77 KB
servicemodelperformancecounters.dll x64
101.75 KB
servicemodelperformancecounters.dll x86
88.77 KB
servicemodelregui.dll x64
18.04 KB
servicemodelregui.dll x86
18.77 KB
servicemonikersupport.dll x64
34.27 KB
servicemonikersupport.dll x86
31.27 KB
ServicingCommon.dll x64
929.47 KB
ServicingCommon.dll x86
746.49 KB
ServicingUAPI.dll x64
2.01 MB
serwvdrv.dll x64
44 KB
serwvdrv.dll x86
19 KB
SessEnv.dll x64
568 KB
SessEnv.dll x86
445.5 KB
setbcdlocale.dll x64
32 KB
SetNetworkLocation.dll x64
48 KB
SetNetworkLocationFlyout.dll x64
60 KB
SetProxyCredential.dll x64
60 KB
SettingsEnvironment.Desktop.dll x64
580 KB
SettingsExtensibilityHandlers.dll x64
168 KB
SettingsHandlers_Accessibility.dll x64
388 KB
SettingsHandlers_AdvertisingId.dll x64
84 KB
SettingsHandlers_AppControl.dll x64
128 KB
SettingsHandlers_AppExecutionAlias.dll x64
188 KB
SettingsHandlers_Authentication.dll x64
380 KB
SettingsHandlers_BackgroundApps.dll x64
180 KB
SettingsHandlers_BatteryUsage.dll x64
388 KB
SettingsHandlers_BrowserDeclutter.dll x64
176 KB
SettingsHandlers_Camera.dll x64
332 KB
SettingsHandlers_CapabilityAccess.dll x64
340 KB
SettingsHandlers_ClosedCaptioning.dll x64
232 KB
SettingsHandlers_ContentDeliveryManager.dll x64
204 KB
SettingsHandlers_Cortana.dll x64
260 KB
SettingsHandlers_Devices.dll x64
728 KB
SettingsHandlers_Display.dll x64
480 KB
SettingsHandlers_Flights.dll x64
516 KB
SettingsHandlers_Fonts.dll x64
388 KB

Download Official Installer

Recommended: Install the full package

These are core Windows system files. If corrupted, run sfc /scannow in Command Prompt as Administrator.

Official Microsoft download
Digitally signed installer
Installs all 4795 required DLLs

Don't Download Individual DLLs

Installing the full runtime package is always the correct solution. Individual DLL downloads rarely fix the underlying issue and can cause additional problems.