Windows 8 Services

Offline Files Driver - Windows 8 Service

Allows network files to be used while the local computer is offline.

This service also exists in Windows 10, 7 and Vista.

Startup Type

Windows 8 edition Windows 8 Windows 8.1 Windows 8.1 Update 1
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Pro System System System
Enterprise System System System

Default Properties

Display name:Offline Files Driver
Service name:CSC
Error control:normal

Default Behavior

The Offline Files Driver service is a kernel mode driver. If Offline Files Driver fails to start, the error is logged. Windows 8 startup proceeds, but a message box is displayed informing you that the CSC service has failed to start.


Offline Files Driver won't start, if the Redirected Buffering Sub System service is stopped or disabled.

Restore Default Startup Type of Offline Files Driver

Automated Restore

1. Select your Windows 8 release and edition, and then click on the Download button below.

2. Save the RestoreOfflineFilesDriverWindows8.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.

Note. Make sure that the csc.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows 8 installation media.

Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.