AppID Driver Service Defaults in Windows 8

Identifies an application and enforces software restriction policies.

Default Settings

Startup type:Manual
Display name:AppID Driver
Service name:AppID
Service type:kernel
Error control:normal
Path:%SystemRoot%\system32\drivers\appid.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AppID

Default Behavior

The AppID Driver service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If AppID 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 AppID service hasn't been started.

Dependencies

AppID Driver can't start, if any service from the list below is disabled or not available:

If AppID Driver is disabled, the Application Identity service will not be started and initialized.

Restore Default Startup Configuration for AppID Driver

Before you begin doing this, make sure that all the services on which AppID Driver depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

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

sc config AppID start= demand

3. Close the command window and restart the computer.

The AppID service is using the appid.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.