Disk Driver Service Defaults in Windows 8

PnP Disk Driver by Microsoft Corporation.

Default Settings

Startup type:Boot
Display name:Disk Driver
Service name:disk
Service type:kernel
Error control:normal
Path:%SystemRoot%\System32\drivers\disk.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\disk

Default Behavior

The Disk Driver service is a kernel device driver. In Windows 8 it is being loaded by Boot Loader before Kernel initialization. If Disk Driver fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the disk service hasn't been started.

Restore Default Startup Configuration for Disk Driver

1. Select your Windows 8 edition and update pack, and then click Download.

2. Save the Win8_disk_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The disk service is using the disk.sys file that is located in the %WinDir%\System32\drivers folder. If the file is corrupted or deleted, you can put it back in there.