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Chapter 29. When Windows Won't Work: Tro... > Handling Hardware Headaches - Pg. 351

When Windows Won't Work: Troubleshooting Common Problems 351 You can only encrypt a file if it resides on a hard disk that uses something called the NTFS file system. The specifics of NTFS aren't important, but it's suffice to say that a file system determines how file are stored on the hard disk, and NTFS is the most powerful of them all. How do you know whether a hard disk uses NTFS? Select Start, My Computer and then highlight the disk drive. In the WebView panel's Details section, look at the File System value. (You can also see this value by selecting File, Properties.) If a disk drive isn't NTFS, you can change that by selecting Start, All Programs, Accessories, Command Prompt. At the prompt, type in the following command and press Enter (replace d with the letter of the drive you want to convert): convert d: /fs:ntfs When you want to encrypt a file, the safest and easiest method is to encrypt an entire folder and then use that folder to store the file or files that you want encrypted. Here are the steps to follow to encrypt a folder: 1. 2. 3. 4. 5. 6. In My Computer, find and highlight the folder you want to encrypt. Select File, Properties to see the folder's Properties dialog box. In the General tab, click Advanced to catch up with the Advanced Attributes dialog box. Activate the Encrypt contents to secure data check box. Click OK to return to the Properties dialog box. Click OK. You'll notice at this point that My Computer displays the name of the folder and the names of its files in a green font. This tells you that you're dealing with encrypted stuff.