[Tip] Show File Extensions In Windows 7 & Vista

October 10th, 2010 | No Comments | Posted in Windows by bharath

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Windows 7 hides the extensions of the files by default to keep t simple. However you can easily know the extension of any file just by looking at its icon. However, it may sometimes can get as bad as it can, suppose an attacker copies an .exe file to your computer and renames it as something catchy like “sensational-pic.jpg.exe”, now as Windows 7 doesn’t show the file extensions, all you will see is “sensational-pic.jpg” (.exe part would be hidden!)which might falsely lead you to think it as a picture and click it all just to run the whatever code the attacker has injected into the program.

And I guess I have convinced to find out a way to show the file extensions in your Windows 7 Smile. That’s why I’m writing a step-by-step tutorial to explain to show the file name extensions that had been set to be hidden by default.

Steps:

1. Open My Computer (Use Alt + E button).

2. Click Organize button, select “Folder and search options from menu”.

Folder search options in windows 7

3. In the Folder Options window, go to “View” tab.

View tab in folder options

4. Under the View tab, uncheck “Hide extensions for known file types”.Hide extensions for known files under folder options

5. Click Apply to save the settings and then click OK to close the window.

Alright, you have now changed the settings to enable the file extensions. Here is what the change would be like:

Before:

file_ext_disabled

Guess what type of file it is?

After enabling file extensions:

file_ext_before

It is an image file! It is evident after changing the settings to show the extensions for file types. The only problem that you might face is during renaming the file, except that you shouldn’t be having too many issues with these settings enabled. To hide the file extensions, just check against “Hide extensions for known file types” in the step 4.

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