What is a .SYS File And How To Open It – Microsoft (Guide)


Have you downloaded a file with .sys extension, but you are not sure what it is? It is possible that you know what the file does, but you are unsure on how to open it. Don’t worry! This article explains everything about the .sys file extension, how to open and work with it on various systems.

What is a .SYS file?

The file extension .SYS is from Windows System File.The creator of this file extension is Microsoft. This system related files is in text and binary format.

What to know

There is currently 1 software that can open the .sys file on 1 platform.

How to open a .SYS file?

Below we have written a comprehensive guide on how to open the .SYS file on various operating systems.

How to open a .SYS file on Windows (7, 8, 10)

Below you can see a visual guide on how to open the .sys file on Windows in 4 easy steps.

1. The first step is to download the Microsoft Windows software. This software will be used for opening the file.

Step 2

Step 2: Locating your .SYS file

2. The second step is locating the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

Step 3

Step 3: Choose “Open with”

3. In the third step, after locating your file, right click on it and click “Open with”.

Step 4

Step 4: Choose the software and click ok

4. After choosing the “Open with” option, you will have an option to choose the Microsoft Windows software you have downloaded. Choose your software and click on “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .SYS file?

If you are still unable to open the .SYS file, it might be because you are trying to open the wrong one. The .SYS file extension is similar to other file extensions such as: .sys – Motorola. You might be trying to open the wrong file, please recheck if you are trying to open the right file extension again.


In this article you have learned how to open the .SYS file with the Microsoft Windows program on Windows.