Immediately, the 'video.' folder opens, as exhibited in the picture below. Input start e:\video.\ in Command Prompt window, and press Enter. If you want to open the 'video.' folder, you can follow the procedure below. Step 2: Type a start command in the form of 'start drive letter\folder name\' (without double quotation marks) and affirm the cmd. Go to E disk and you will find that a folder called 'video.' is created with triumph. Hence, you can change the drive letter and folder name to create another folder on your computer. Tips: In the md command, 'e:' stands for the drive letter of E disk, and 'video.' refers to the folder name. That is, type md e:\video.\ and tap Enter on the keyboard. Step 2: Input a md command in the form of 'md drive letter\folder name\' (without double quotation marks) and confirm the setting. Press Windows key and X key at the same time to open a menu, and then choose Command Prompt in it. Sample: Create a folder titled 'video.' in E disk