Serial Port Driver - Windows 7 Service
Serial Device Driver by Microsoft Corporation.
This service also exists in Windows 10, 11, 8, Vista and XP.
Startup Type
| Windows 7 edition | without SP | SP1 |
|---|---|---|
| Starter | Manual | Manual |
| Home Basic | Manual | Manual |
| Home Premium | Manual | Manual |
| Professional | Manual | Manual |
| Ultimate | Manual | Manual |
| Enterprise | Manual | Manual |
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
The Serial Port Driver service is a kernel driver. If the Serial Port Driver fails to load or initialize, Windows 7 startup proceeds. No warning is displayed, but the error is recorded into the Event Log.
Restore Default Startup Type of Serial Port Driver
Automated Restore
1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.
2. Save the RestoreSerialPortDriverWindows7.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 7 installation media.