How to buy a laptop to know that the computer is not second hand,

You're talking about hard drive usage, right......There are many software that can check the power-on time of the hard drive.

There is hdtune for the professional point, and 360 for the public point. After confirming that the hard disk has been powered on for a relatively small time, take a closer look at the USB port of the computer to observe whether there is any obvious dust. There's also the smell of the book near the keyboard.,The new machine will basically have a very special smell similar to rosin.。

Basically, you can get 90% of 2-handed computers in these three steps. In addition, some brands can also check the production date by the serial number on the back of the machine, especially if the production date is too old.

But to be honest, as a guy who has worked in the computer city for 3 years, it is difficult to prevent merchants from deceiving customers, so the most important thing to avoid renovation is not to be greedy. The book's ** is now more transparent.,Do some homework before going to a physical store.,Roughly** know in your heart.,Encounter** particularly low.,Don't be impulsive.,You can avoid a lot of tragedies.。 Hope it helps.

There's no way to know if it's second-hand.

The so-called second-hand, that is, resold by the first user to the second user, this is called second-hand. As long as there are no obvious scratches on the outside, the internal hard disk partition and storage information can be restored to the initial state, which is impossible to detect.

The precautions for buying a computer are:

1. There is no trace of opening on the outer packaging.

2. All kinds of seals of the computer are in good condition.

3. All kinds of random vouchers are complete and the accessories are complete.

4. There are no scratches on the outside of the computer.

5. Use hardware detection software, such as: Master Lu, and the results of the detection are consistent with the configuration.

You can use Master Lu software to perform a hardware scan of the computer. Check whether the number of times each hardware is used is reasonable.

This is only an evaluation of some of the hardware, and strictly speaking, it is not possible to accurately determine that all the hardware of the computer is not second-hand.

Suggestion: to the regular computer sales channel to buy, the formal sales channel has invoices, you can have a better after-sales guarantee.

You turn on the computer. Click on My Computer, Properties, and look at the factory date in it, the easiest way to understand.

Use Master Lu to know at a glance, including the time of use of the electric annoyance, graphics card, driver and other overall hardware manufacturing date will tell you, and also include all the performance of what system will be displayed clearly, "Master Lu is a good identification software, not a person, hehe。

The next Luhua master, just test it.

Here's how:

1. See if the common keys such as the CTRL key, left shift key, and enter key of the notebook are worn or particularly new;

2. Generally, there is a label at the bottom of the notebook to see if there are traces of wear and tear on the label or the handwriting on it;

3. Look at the screw groove at the bottom of the notebook for traces of friction or prying;

4. Turn on the machine to see the time of booting, the new machine is very fast and the hard disk sound is very small, the hard disk is generally above the palm rest or keyboard, and ask to smell the heat dissipation port whether there is a smell of baked plastic, the new machine is powered on for the first time, there will be a faint plastic smell, very heavy or long-term if it may be a repair machine;

5. Check the packaging box of the machine carefully, only the seal has been moved;

6. Carefully check the random accessories after unpacking, and often have dealers replace the original accessories inside and then sell them, especially computer bags.

7. The time to use software such as Master Lu to detect the use of hardware, the time for the use of new machines is generally very short.