1. Check the overall appearance of the laptop: The first thing you need to do is take a close look at the entire machine to see if its appearance is too old, if there are too many scratches, if there are any dented joints or joints.
If a laptop is dented or scratched a lot, it shows that the previous user did not appreciate the device and often dropped it or threw it around, so the durability and stability of the device will be greatly reduced.
Open and close the device a few times to feel the folding of the hinge connecting the screen to the body of the device.
If you don’t have much experience choosing used laptops, you should pay attention to laptops with intact stamps from major distributors such as FPT, Digiworld, Vinh Xuan, The Gioi Di Dong, Viettel… These products still have stamps on them.
2. Check the screen: First, check the brightness and display color of the laptop by adjusting the brightness up and down.
3. Check the keyboard and touch mouse: When checking the keyboard, start the Word or Notepad program on your computer, type all the letters, numbers and characters to see if any buttons or letters are listed.
To test the entire keyboard, you can go to Google and type in the search for `test keyboard` and there will be many websites that support key testing, you just need to access and test each key button one by one.
For a touch mouse, check the sensitivity and move the mouse to see if it covers the entire screen of your laptop.
4. Check the health of the laptop’s hard drive: The laptop’s hard drive is the most important device to check when you choose to buy a used laptop because the hard drive’s health cannot be seen like a screen or tested like a keyboard.
5. Check the computer configuration: You must know how to check the computer configuration, some places often provide laptop testing software so that we can feel more secure about the products they sell.
There is also a simpler way to check the laptop configuration, just press the Windows + R key combination and type the command `dxdiag` and press enter.
6. Check the battery and charger: The battery and charger are very important components, directly affecting the laptop motherboard.
– Click on the battery icon in the lower right corner of the screen, a battery percentage panel appears, open a program, it’s best to open a video, run a test for 10 minutes if the battery power drops quickly.
– Proceed to charge the battery.
7. Check the CD/DVD drive and other peripheral devices: You need to check if the CD/DVD drive is still working well, whether the disc reading speed is fast or slow.
8. Check the webcam: Many people today need to make video calls via laptop.
9. Check the microphone: A good microphone will be very convenient when laptop users need to study and talk with friends.
10. Check wifi signal: If your job often requires you to work online, wifi is an indispensable function when choosing a laptop.
In addition, to check the device’s ability to receive wifi signals, we pay attention to the wifi networks in the list that can be connected. If we see many wifi networks and the wifi signal gradually decreases from top to bottom, it proves the ability to receive wifi signals.
11. Sound test: A normal laptop is equipped with two speakers arranged on both sides of the device, which can face up or down depending on the type of device.
12. Let the machine test continuously for a few hours: This step is usually only applied when you bring the machine home, because when you go to buy it, no one waits to test it for a few hours.
In addition, if it is a gaming laptop, graphics specialist or other high-end machine, there will be some more specialized testing software used to quickly check the discrete graphics card and some other things.
I hope you can choose a satisfactory used laptop that meets the criteria of delicious – nutritious – cheap.
Hannah 
Grayson