Windows 7 system flash disk encryption function tutorial

I believe many of my friends will choose a small and exquisite flash drive as a removable storage device, but if it is lost, it may lead to data loss, but use third-party encryption. The software is quite troublesome. After all, installation and registration are not easy. In fact, if you have already started Windows 7, you can use BitLocker to add the encryption function of "Native" to the flash drive, and the operation is quite simple.

Step-by-step fast encryption of flash drives

In fact, as early as Windows Vista, the operating system has provided a security feature called BitLocker, but only in the enterprise and flagship versions. application. Windows 7's BitLocker is more powerful, and users don't need to make any additional settings (such as modifying Group Policy). Just log in to the system as an administrator and connect the encrypted flash drive to the computer correctly. Open the “Computer” window and follow the steps below:

Step 1: Right click on the flash drive from In the shortcut menu, select “Enable BitLocker”, then the “BitLocker Drive Encryption” wizard will pop up. Please select the unlock method according to your needs. It is recommended to select “Use password to unlock the drive”, enter the password twice in succession, click “ The next & rdquo; button continues.

Step 2: You can choose to save the recovery key to a file (so you don't forget it), or you can print the recovery key. If you choose the former, we will get a file name similar to “BitLocker recovery For the text file of the key 0B374660-8D1D-4B3F-B96E-6CF027DDA9E5.txt", click the “Next” button to continue.

Step 3: After entering the next window, click the “Enable Encryption” button, Windows 7 will officially start encrypting the flash drive. The encryption time depends mainly on the capacity and file capacity of the flash drive. Wait a moment to complete the encryption.

Remember to use the flash drive after decrypting the password

Now, we will find that the drive letter of this encrypted flash drive device has changed a bit, and it will become a lock icon. This means that the files on the flash drive have been successfully encrypted and the data is secured.

When you need to use it, we need to double-click the drive letter. A dialog box will pop up. Enter the correct unlock password in the “Type the password to unlock this drive” text box and click “&” in the lower right corner. ; unlock the & rdquo; button, then you can perform normal file read and write operations. If you don't want to enter your password every time you use an encrypted flash drive, you can check the “Automatically unlock this on your computer from now on” check box when you enter your password, and you can use it directly on this computer later. An encrypted flash drive, of course, if you are using it on another computer, you still need to enter the correct password.

If you are using Windows Vista or Windows XP, you can also use the flash drive encrypted in Windows 7. The flash drive letter will also have a lock icon, but you need to use it right each time. Click on “BitLocker To Go Reader” and enter the correct password to unlock it. However, in Windows Vista or Windows XP, the flash disk processed by "BitLocker" under Windows 7 can only perform limited operations such as viewing and copying after decryption, and cannot perform write operations. It is for reasons of safety.

Turn off encryption

If you need to cancel the encryption protection of BitLocker, you must still enter the Windows 7 operating system, enter the control panel, select “ System & Security → BitLocker Drive Encryption & rdquo;, Find the flash drive that has been encrypted by BitLocker, click the “BitLocker” button on the right side, click the “Decrypt Drive” button, and then follow the prompts to turn off the encryption function. Interested friends can try it.