How to Show File Extensions in Windows 10

How to Show File Extensions in Windows 10: File Extension is ending of a file which helps in identification of the type of file in Windows 10. For example, the file name “example.pdf” has the file extension “.pdf” which means the file is associated with adobe acrobat reader and is a pdf file. Now if you are a novice Windows users then it’s very important to see file extension in order to identify the type of file you’re trying to open.

But first, you should know why file extensions are important, well, it’s important because you could click on malware/virus files without even knowing so. For example, you downloaded a file security.pdf.exe, now if you have file extension hidden you will only see the file as security.pdf which is a big security risk as you will definitely open the file thinking it of as your pdf file. This file could potentially damage your system and that is why file extensions are important.

When file extensions are disabled you would still see the icon of the program which is associated with that file type. For example, if you have a file test.docx, then even if you have file extension disable, you would still see the Microsoft Word or the default program icon on the file but the extension “.docx” would be hidden.

How to Show File Extensions in Windows 10

Make sure to  create a restore point , just in case something goes wrong.

Method 1: Show File Extensions via Folder Options

1.Search for Control Panel in Windows search then click on the search result to open Control Panel.

Note: Or you could directly open Folder Options by pressing Windows Key + R then typing C:\Windows\System32\rundll32.exe shell32.dll,Options_RunDLL 7 and click OK.

2.Now click on Appearance and Personalization inside Control Panel.

3.On the next screen, click on File Explorer Options.

4.Now switch to the View tab and uncheck “Hide extensions for known file types.

5.Click Apply followed by OK.

6.Reboot your PC to save changes.

Method 2: Show File Extensions via File Explorer Settings

1.Press Windows Key + E to open File Explorer.

2.Now click on View tab and checkmark “File name extensions.

3.This will enable file extensions till you again uncheck it.

4.Reboot your PC.


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That’s it you have successfully learned How to Show File Extensions in Windows 10 but if you still have any queries regarding this post then feel free to ask them in the comment’s section.