Modem Service Defaults in Windows 8

Modem Device Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Modem
Service name:Modem
Service type:kernel
Error control:ignore
Group:Extended base
Path:%SystemRoot%\system32\drivers\modem.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Modem

Default Behavior

The Modem service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Modem fails to load or initialize, Windows 8 startup proceeds. The error details should be added to Event Log without notifying the user.

Restore Default Startup Configuration for Modem

1. Run the Command Prompt as an administrator.

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

sc config Modem start= demand

3. Close the command window and restart the computer.

The Modem service is using the modem.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.