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What is serial?

Serial.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the OS, hardware etc.
The free file information forum can help you determine if serial.sys belonging to the Windows system or an application you can trust.

Run a free scan to check for serial drivers in need of updating

Serial.sys file information

The process known as Serial Device Driver or Brotehr Serial I/F Driver belongs to software Microsoft Windows Operating System by Microsoft (www.microsoft.com) or Brother Industries (www.brother.com).

Description: The original serial.sys is an important part of Windows and rarely causes problems. The file serial.sys is located in the folder C:\Windows\System32\drivers. Known file sizes on Windows 7/XP are 64,896 bytes (56% of all occurrences), 65,920 bytes and 5 more variants. http://www.file.net/process/serial.sys.html 
The driver can be started or stopped from Services in the Control Panel or by other programs. The file is a Windows system file. The program has no visible window. There is no detailed description of this service. The serial.sys file is a trustworthy file from Microsoft. serial.sys seems to be a compressed file. Therefore the technical security rating is 1% dangerous, however also read the users reviews.

Recommended: Identify serial.sys related errors

Important: Some malware disguises itself as serial.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the serial.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

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  Jake   (further information)
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Summary: Average user rating of serial.sys: based on 5 votes with 7 user comments.
5 users think serial.sys is essential for Windows or an installed application. 6 users don't grade serial.sys ("not sure about it").

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Serial scanner

Security Task Manager shows all running Windows tasks including embedded hidden functions (e.g. keyboard or browser monitoring, autostart entry). A unique security risk rating indicates the likelihood of the process being potential spyware, malware, keylogger or a Trojan.

Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, trojans, keyloggers, malware and tracking threats from your hard disk. Ideal supplement to Security Task Manager.

SpeedUpMyPC scans, cleans, repairs and optimizes your computer.

Other processes

serial.sys [all]