How to encrypt TXT files in win7 Ultimate computer?

In fact, many times, we need to set the power-on password for our win7 64-bit Ultimate download computer. The most important thing is to protect the file data in our win7 Ultimate computer. That is to say, if we can encrypt the file separately. If you deal with it, then you don't need to set the computer power-on password. In this case, if you encounter the computer to enter the sleep state lock screen, you don't need to enter the power-on password to log in. Today, Xiaobian wants to introduce how to encrypt the TXT file of the win7 Ultimate computer. Let's take a look at the steps of the operation!
1. First, we need to prepare a picture. A random picture can be used. For example, Xiaobian prepared a picture file in the format of jpg, named 003.jpg. After that, we prepared the TXT file that we need to encrypt and named it as tina.txt. After that, we placed two files on a disk in the Win7 Ultimate computer. Here is the G disk.
2. After doing the above preparations, let's press the win+R shortcut on the win7 Ultimate computer keyboard to open the computer's running window, then type cmd and click Enter, at the open command prompt. In the window, we enter the command copy 003.jpg/b + tina.txt/a tina.jpg (specific commands need to be replaced according to the picture name and TXT file name), after completion, we click Enter to confirm, wait for the computer to run Finished.