batcmd.com Windows 11 Services

CD/DVD File System Reader - Windows 11 Service

ISO9660/Joliet File System Reader for CD/DVDs. (Core) (All pieces).

This service also exists in Windows 10, 7, 8, Vista and XP.

Startup Type

Windows 11 version Home Pro Education Enterprise
21H2 Disabled Disabled Disabled Disabled
22H2 Disabled Disabled Disabled Disabled
23H2 Disabled Disabled Disabled Disabled

Default Properties

Display name:CD/DVD File System Reader
Service name:cdfs
Type:filesys
Path:%WinDir%\system32\DRIVERS\cdfs.sys
Error control:normal
Group:Boot File System

Default Behavior

The CD/DVD File System Reader service is a file system driver. If CD/DVD File System Reader fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the cdfs service has failed to start.

Restore Default Startup Type for CD/DVD File System Reader

Automated Restore

1. Select your Windows 11 edition and release, and then click on the Download button below.

2. Save the RestoreCDDVDFileSystemReaderWindows11.bat file to any folder on a local drive such as SSD or a hard disk.

3. Right-click the downloaded batch file and select Properties.

4. Check the Unblock checkbox and click OK.

5. Right-click the batch file again and select Run as administrator.

6. Restart the computer to save changes.

Note. Make sure that the cdfs.sys file exists in the %WinDir%\system32\DRIVERS folder. If this file is missing you can try to restore it from your Windows 11 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.