Article ID: 865219 - View products that this article applies to.
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SUMMARY

A file name extension is a set of characters added to the end of a file name that determine which program should open it. By default, Windows Explorer hides file name extensions in Windows 7 and earlier versions of Windows. However, you can make file name extensions visible. This article describes how to show or hide file name extensions in Windows Explorer. The article also provides an automatic solution that can be used in all Windows platform to show file name extensions.

MORE INFORMATION

To have us show file name extensions in Windows Explorer for you, go to the "Fix it for me" section. If you prefer to fix this problem yourself, go to the "Let me fix it myself" section.

Fix it for me

To fix this problem automatically, click the Fix it button or link. Click Run in the File Download dialog box, and then follow the steps in the Fix it wizard.
Fix this problem
Microsoft Fix it 50533


Notes
  • If you want to hide file name extensions in Windows Explorer after you run this fix it package, you must follow the steps that are described in this article manually.
  • This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
  • If you are not using the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.

Then, go to the "Did this fix the problem?" section.



Let me fix it myself

To show file name extensions in Windows Explorer, follow these steps:

For Windows Vista, Windows 7, and Windows Server 2008


  1. Start Windows Explorer, you can do this by opening up any folder.
  2. Click Organize.
  3. Click Folder and search options.
  4. Click the View tab.
  5. Scroll down until you notice Hide extensions for known file types, un-check this line by clicking the check box.
    Note To hide file name extensions, check this line.
  6. Click OK

For Windows 2000, Windows XP, and Windows Server 2003

  1. Start Windows Explorer, you can do this by opening up any folder.
  2. Click Tools, and then click Folder Options.
  3. Scroll down and then click Folder and search options.
  4. Click the View tab.
  5. Scroll down until you notice Hide extensions for known file types, un-check this line by clicking the check box.

    Note To hide file name extensions, check this line.
  6. Click OK

Did this fix the problem?

  • Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support.
  • We would appreciate your feedback. To provide feedback or to report any issues with this solution, please leave a comment on the "Fix it for me" blog or send us an email.

REFERENCES

For more information about frequently asked questions related to file names and file name extensions, visit the following Microsoft website:
File names and file name extensions: frequently asked questions

Properties

Article ID: 865219 - Last Review: May 30, 2011 - Revision: 1.7
APPLIES TO
  • Microsoft Windows 2000 Server
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Media Center Edition 2005 Update Rollup 2
  • Microsoft Windows XP Starter Edition
  • Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)
  • Microsoft Windows Server 2003 R2 Datacenter x64 Edition
  • Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
  • Microsoft Windows Server 2003 R2 Enterprise x64 Edition
  • Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003 R2 Standard x64 Edition
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
Keywords: 
kbretire kbsurveynew kbinfo kbhowto kbexpertisebeginner KB865219
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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