batcmd.com Windows Vista Services

Serial Port Driver - Windows Vista Service

Serial Device Driver by Microsoft Corporation.

This service also exists in Windows 10, 7, 8 and XP.

Startup Type

Since Serial Port Driver is a kernel mode driver, its startup might be configured depending on installed hardware. Changing its startup configuration might cause hardware issues. In the table below you can see how it is configured on my system, but your default settings might differ from mine.

Windows Vista edition without SP SP1 SP2
Starter Disabled Disabled Disabled
Home Basic Disabled Disabled Disabled
Home Premium Disabled Disabled Disabled
Business Disabled Disabled Disabled
Ultimate Disabled Disabled Disabled

Default Properties

Display name:Serial Port Driver
Service name:Serial
Type:kernel
Path:%WinDir%\system32\drivers\serial.sys
Error control:ignore
Group:Extended base

Default Behavior

Serial Port Driver is a kernel mode driver. If Serial Port Driver fails to load or initialize, Windows Vista start up proceeds. No warning is displayed, but the error is recorded into the Event Log.

Restore Default Startup Type for Serial Port Driver

Automated Restore

1. Select your Windows Vista edition and Service Pack, and then click on the Download button below.

2. Save the RestoreSerialPortDriverWindowsVista.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the serial.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows Vista installation media.