Everyone knows that if the mobile hard disk is lost, the data inside is completely freely readable and writable for other users. If you are in business or sales. That may cause serious losses to the company's interests. So we have to use technology to arm ourselves and protect our key data. On the Windows system platform, there are many ways to encrypt data, such as the EFS file encryption system. But today I mainly explain how to protect the hard disk data security from another aspect, that is, make good use of TrueCrypt software.
Create a virtual encryption disk
After installing the software on the computer, the copy of the Language.zh-cn file in the directory will be extracted. Go to the installation directory, so you can display it in Chinese interface, run TrueCrypt software, and select a drive letter (such as H) that is not occupied by the system under “" drive letter", click “Create Encrypted Volume” to enter the creation. Wizard, this will provide three ways to create encrypted volumes. If the computer is shared by multiple people, it is recommended to select the first item. If it is encrypted hard disk partition, mobile hard disk or flash memory, you need to select the second item, and the third item is generally For private use of computers. Source: Exam
Click “Next” After prompting the user to choose whether the encrypted volume needs to be hidden, if the data needs to be completely secure, it is recommended to select “Hidden TrueCrypt Encrypted Volume”, the average user selects “Standard User” TrueCrypt encrypted volume & rdquo; Click “Next” then specify the location to create the encrypted disk. For example, you need to create the encrypted disk in the D partition. Just click the “Select Device” button and select the D partition in the pop-up interface; Create an encrypted disk on a file, click “select file”, and enter an arbitrary file name.
Click “Next” After prompting the user to select the encryption algorithm, it is recommended to select “AES” is better, the other is the default setting, click “Next”, then prompt for the secret disk Size, according to the hard disk partition capacity and personal storage needs, enter the storage capacity of the encrypted disk in the blank space, and then enter the password of the encrypted volume, or click "Use the key file" to generate a key for easy use of flash memory and mobile hard disk. File, select the file system in "Encrypted Volume Format", and finally click "Format" to start creating a virtual disk.
Using a virtual encryption disk
After creating a virtual disk, a virtual disk file will appear in the hard disk partition. At this time, it cannot be used. It must be loaded before storing data. The method is: in the main interface of the software. Click “ select file & rdquo;, then open the virtual disk file you just created, right click on the H drive letter, select “ load selected encrypted volume & rdquo;, the encrypted volume information will appear, then it will be “My computer” appears a "local disk(H)" drive letter and shows the capacity it can store.
When using, copy the files to be protected to the H drive, close the virtual disk, right click on the TrueCrypt icon in the system tray area, then select the “Uninstall H:” option and exit the TrueCrypt software. can. The next time you use the virtual encryption disk, you must run the TrueCrypt software again, load the virtual disk file according to the previous method, and you must also enter the set encryption password. Otherwise, you cannot use the files in the H disk, thus realizing the hard disk or mobile storage device. The data protection in China solves the loss of business users due to data theft.
Knowledge Extension:
TrueCrypt is a free PC data encryption software that supports Vista and Linux systems. It can create one or more virtual disks on the hard disk or flash memory. All files on the virtual disk are automatically encrypted. After encryption, it needs to be accessed by password. Because of the AES-256 encryption algorithm, encrypted data is almost impossible. For ordinary computers without business security functions, or for business users who are not willing to purchase encrypted flash memory, TrueCrypt can let them The data storage is safe and reliable.