Microcode Update Driver Service Defaults in Windows XP

Update Driver by Microsoft Corporation.

Default Settings

Startup type: Manual
Display name:Microcode Update Driver
Service name:Update
Service type:kernel
Error control:normal
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Update

Default Behavior

Microcode Update Driver is a kernel device driver. In Windows XP it won't start until the current user starts it. If the Microcode Update Driver fails to start, the technical information about the error is added to the Event Log. Windows XP startup should proceed, but a message box should be displayed informing the user that the Update service has failed to start.

Restore Default Startup Configuration of Microcode Update Driver

1. Run the Command Prompt.

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

sc config Update start= demand

3. Close the command window and restart the computer.

The Update service is using the update.sys file that is located in the C:\Windows\system32\DRIVERS directory. If the file is removed or corrupted, read this article to restore its original version from Windows XP installation media.