DISK DATA RECOVERY

According to research, wireless consortium specification defines two methods to establish a connection. One is: using cable to connect computer and external device before wireless connection establishment. The other is: inputting the string of numbers provided by external device to computer in order to create connection.
 
But before that, USB is frequently used to connect between computers and external devices. Till now, USB connection is still popular. So, we think it’s very necessary to talk about USB recovery. Do you think so?
 

 
Now, we plan to firstly show you how to finish free USB data recovery step by step; then, we’ll introduce a lot about the USB system.
 

Finish USB Recovery with Free USB Recovery Tool

You need to download MiniTool Power Data Recovery Free Edition and follow the tutorial given below to recover data from USB device.
 

Step 1 – Choose A Proper Function

Please run MiniTool Power Data Recovery to enter its main interface. Then, put your cursor onto each one of the functions shown here to know their specific usage. After that, choose the one which is suitable for your USB data loss case.
 

 
Now, click on the function to move on.
 

Step 2 – Select the USB Device to Scan

After entering the function you choose, you’ll see a disk/partition list.
 

 
Now, choose the USB device or a single partition on the device to scan by pressing “Scan” or “Full Scan” button.
 

Step 3 – Choose Needed Files to Recover

The time that will be taken to finish the scan depends on the size and using condition of your USB drive, so you may need to wait patiently sometimes.
 
When the scan is over, a scan result interface will show automatically.
 

 
Now, please look through the files and choose the ones you need to recover by pressing “Scan”, choosing storage place and pressing “OK” in order.
 

What Can USB System Do

USB system manages the data transmission between host and USB devices through a host controller. Meanwhile, USB system is also responsible for managing the USB resources, such as bandwidth and bus energy. This enables customers to access USB successfully.
 

Structure of USB System

USB system adopts the cascaded star topology, which consists of three basic components: host, Hub and function equipment. Host, also known as the root, root knot or root Hub, is installed into a computer by mounting on the motherboard or using as an adapter card. Containing host controller and root hub, the host controls the flow of control information and data on the USB bus.
 
Hub is a specific component of USB structure; it provides the point named port and makes the device connected to the USB bus. Meanwhile, it detects all devices connected to the bus and provides power management for them. What’s more, it is responsible for the fault detection and recovery of bus.
 
The function equipment is connected to bus through port, and USB can also be used as hub.