Problem Solved PC Repair » Know your file extension http://problemsolvedpcrepair.com Respected, local and well-known PC support and repair company. Wed, 02 Jun 2010 07:55:00 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Know your files and their true Extension http://problemsolvedpcrepair.com/know-your-files-and-their-true-extension/ http://problemsolvedpcrepair.com/know-your-files-and-their-true-extension/#comments Wed, 29 Jul 2009 07:50:00 +0000 mikedopp http://problemsolvedpcrepair.com/know-your-files-and-their-true-extension/ A large issue with all versions of Windows is by default the Operating system is installed to not show your file extension. FolderOptions

So why is this a problem? Well since Virus developers and Script kiddies learned of this they would mask the virus file as a jpeg. So please what ever version of windows you are using please uncheck Hide extensions for known file types.

If you notice in the diagram on the left I would and do the following on every install of any Windows version I install.

-Uncheck Automatically search for network folders and printers

-Check: Do not cache thumbnails

-Bullet: Show hidden files and folders

Click apply and then Apply to all folders. Windows will prompt you to make sure. Click ok.

Now when you download a file or someone sends you a file you know what the true extension of the file.

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