FAT12/16/32 File System Driver (fastfat) Service Defaults in Windows 10

Note - dependance on CDROM.SYS only if required to read/write DVD-RAM media (which appears as CD class device). (Core) (All pieces).

Default Settings

Startup type: Manual
Display name:FAT12/16/32 File System Driver
Service name:fastfat
Service type:filesys
Error control:normal
Group:Boot File System
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\fastfat

Default Behavior

FAT12/16/32 File System Driver is a file system driver. In Windows 10 it is starting only if the user, an application or another service starts it. If FAT12/16/32 File System Driver fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the fastfat service has failed to start due to the error.

Restore Default Startup Configuration of FAT12/16/32 File System Driver

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config fastfat start= demand

3. Close the command window and restart the computer.