16 Things to Check When Buying a Used Computer

When it comes to buying a used PC, most people will never think about checking the motherboard, drive bays, power supply, or even the case. They will check the hard drive, motherboard, case, and maybe even the RAM. Here are a few things to check before buying used computers.

There are many times when you will want to buy a used computer. You might be buying your child a computer for school, or you might be wanting to give your nephew a computer for Christmas. Whatever the situation might be, this guide will show you the things to look for when buying a used computer.

Buying a used computer is a good option when you don’t want to spend too much money, but you want a computer that will last you for a long time. However, the only way you’ll know if it’s a good deal or not is to read reviews online. The following are 16 things you should always look for when buying a used computer.. Read more about how to buy old computers from companies and let us know what you think.

A new computer isn’t always in our budget. In this scenario, you’ll need to be aware of a few things to look for when purchasing a secondhand computer.

Different kinds of computers come with a variety of dangers.

In comparison to a desktop computer, I would be more careful with a laptop.

In a desktop computer, parts are much simpler to replace.

While buying a secondhand computer from a respected computer shop is an option, don’t restrict yourself to that.

There are some great bargains to be had via friends, relatives, and even the internet. However, make sure you can take a good look at it without feeling obligated to buy it first.

A secondhand gaming computer may also be a suitable choice for a student who needs a computer for both academics and gaming.

16 Things to Check When Buying a Used Computer

When purchasing a secondhand computer, there are a few things to keep in mind.

Based on my own experience, I’ve compiled the following list. This list is not ranked in any particular order.

1. Examine for bodily harm.

Some kinds of computer case fractures are difficult to detect. So take your time and examine everything thoroughly.

If you see a crack, it’s quite likely that the computer was dropped or suffered a serious impact.

If you are looking at a laptop, check the screen carefully for scratches. Open and close the laptop screen and make sure the movement is smooth and has no noises throughout the motion.

Verify that all of the keys on the laptop’s keyboard are functional.

If the computer seems to have been neglected in any way, it’s generally best to avoid it. After all, there will be plenty of candidates to choose from.

2. Take a look at the hard disk

Listen to the sounds coming from the hard disk after you turn it on.

It will almost certainly need to be changed if it sounds like it is grinding or making clucking noises.

Remember that a 2TB hard disk will set you back anything from $80 to $120.

Solid-state drives (SSDs) are becoming more popular than ever before. This is owing to the benefits they provide as well as the fact that they are becoming more affordable and valuable.

As a result, an SSD with a respectable capacity of 1 TB or more will be chosen over a mechanical hard drive if the computer has one.

3. Inquire whether product keys are available.

If you’re installing a new hard drive, you should always conduct a clean Windows installation, which will need a Windows key to activate.

Inquire about the licensing keys if it comes with Microsoft Office or any other paid-for program.

Because the need to reinstall the operating system may arise at any moment, having those keys on hand is critical; otherwise, you may be forced to pay for a new copy of the operating system or other software programs.

You may, of course, maintain a backup of the current installation, but there will come a time when you’ll have to start from scratch.

4. Take a look at the included software.

It’s especially helpful if the machine already has Microsoft Office installed.

Adobe Photoshop is another expensive software that is often used.

Check to see how much it would cost to buy it if it came with paid software. This will give you a rough sense of how much value the computer adds.

If you discover any program that you think may be helpful, ask for the product keys once again.

While having an up-to-date antivirus is essential, a paid solution for keeping your computer free of viruses and other malware is not.

5. Make sure the fans are working.

Check to verify whether all of the fans on a desktop computer are whirling. It’s not a deal-breaker if they’re loud; they’re simple and inexpensive to replace.

If you’re thinking about buying a laptop, check sure the intake channels are clear and that you can hear the fan running after a few minutes of use.

Play a high-resolution video for a few minutes if you can’t hear the fan at all. If the computer still won’t turn on, it’s possible that it’s been overheated.

Move on to the next candidate in this instance. It’s not worth taking the chance.

6. Verify your Windows version.

Pay attention to the Windows version if you discover anything older than Windows 10 installed.

If it contains anything older than Windows 7, you’ll have to pay for a Windows 10 license, as well as the time it takes to install or update it, depending on your computer skills.

It also indicates that the hardware is quite likely to be out of date, and that it may not be compatible with Windows 10.

So, if it’s a very ancient Windows version, it may not be the best investment.

7. Use it for at least 20 minutes.

A decent basic test is to get the computer up to working temperature and keep it there.

If any hardware fails after it reaches working temperature, you’ll have a greater chance of seeing it.

Many computers I’ve seen start up well and then fail after a certain amount of use, either by restarting, freezing, or shutting down. Getting through the post screen is just the start of the challenge.

You don’t want to get a PC with a problem like this. It may be very expensive to repair, not to mention inconvenient.

8. Examine the amount of RAM available.

Although Windows 10 requires a minimum of 1GB of RAM to function, you should not use less than 4GB of RAM.

It will slow down your computer and keep your hard disk running needlessly.

It’s rare that you’ll discover a computer with less than 4GB of RAM, but if you do and you’re interested in it, check out the pricing of new RAM modules.

Some older RAM modules are very costly.

8GB of RAM is a good amount to start with. This should enough to keep your machine operating smoothly with the majority of software programs and Windows 10.

To view the hardware specs, put ‘msinfo32′ (without quotes) into the run box and hit enter.

9. Learn all there is to know about the hard disk.

Even though a hard disk isn’t too costly, there are a few features to consider.

The hard disk is crucial since it stores all of your personal data.

Take a look at the following:

  • The size of the drive’s capacity (in GB or TB). It’s best if you have about 2 TB.
  • Age: If the drive is more than four years old, it may be time to replace it. Even if you have everything backed up, data loss is a major nuisance.
  • I suggest Western Digital as a manufacturer. After evaluating a variety of hard drive manufacturers, Western Digital has proved to be the most dependable.

The age will offer you an estimate of how long it will be before it has to be replaced.

You may get additional information about the hard disk by downloading CrystalDiskInfo.

10. Discover how long the current owner has held it.

It’s a positive indication if the current owner has owned the computer since it was new.

I would be wary if he/she had it for a few months after purchasing/receiving it secondhand.

It may indicate that something is wrong with it, and he or she is attempting to solve the issue.

11. Examine the computer’s overall age.

Find out how old your computer is, and if it’s more than five years old, it’s time to upgrade.

The hardware would most likely be outdated and incapable of running the most recent version of Windows or contemporary applications.

12. Keep a close eye on your spending.

Given that a used computer is the most probable choice, you most likely have a certain price that you cannot surpass.

When comparing basic specs, make sure that number is at least 20% lower than the cheapest new model.

Buying a used computer makes little sense otherwise.

13. Switch on your performance monitor.

The Windows Task Manager’s Performance Monitor can tell you a lot.

Keep an eye on how much of your computer’s processing power is being used. Here are some possible reasons if it is very high:

  • Many programs are configured to launch automatically when the computer starts up.
  • It’s possible that you’ve been infected with a virus or malware.
  • It’s possible that the CPU is underpowered.

The first two reasons are simple to address, but the third would be sufficient reason to continue investigating.

14. Examine the hardware specifications

The first and most essential component to examine is the processor (CPU).

The CPU of the computer will be either Intel or AMD.

Make sure it isn’t older than five years.

When CPUs reach that age, they won’t be able to run Windows 10 or other contemporary applications smoothly.

If you’re looking for a laptop, do some Google searches on the model. If you receive a lot of results regarding a dead display or one that won’t turn on, don’t bother with that model.

15. When shopping for a laptop, opt for one with a battery.

If you’re thinking about buying a laptop, test it out without the charger to see how long the battery lasts.

If the battery’s charge decreases rapidly, it’s clear that it has to be changed. Calculate the cost of a battery and include it in the total.

Play a YouTube video fullscreen for five minutes to get a fast indicator, then check the battery.

If it has lost a few percentage points in that time, you will need to replace the battery.

16. When shopping for a desktop, check for capacitors.

normal capacitorsCapacitors that are normal

bulged faulty capacitorsBulged Capacitors with Faults

Examine the capacitors on the motherboard by opening the case. The motherboard will be the biggest board attached to the casing directly.

Even if these capacitors bulge, the computer may continue to function normally. But keep in mind that this motherboard has seen better days, and it’s just a matter of time until it fails.

If you intend to pick one up yourself, I suggest reading about how to carry a desktop computer in a vehicle.


I understand that there may be a variety of reasons why buying a used computer is a good idea.

However, it may be a good idea to check out some computer costs online. A new computer at the basic level might last you a few years.

You’ll have a warranty and someone to contact if anything goes wrong.

Simply consider the danger vs. the expense and make an informed decision.


Buying a used computer? It’s easy to pick one up, but it can be tricky to sort through all the high-tech gizmos on offer. Some are in excellent condition; others are not so reliable. And if something does go wrong, how do you know that you’ll get what you paid for? Here are some things to check when buying a used computer.. Read more about how to test a used laptop before buying and let us know what you think.

Frequently Asked Questions

How can I check a used computer?

To check a used computer, you can use the search function on the website.

What should I look for when buying a computer?

When buying a computer, you should look for the following things: 1. A processor that is powerful enough to run your programs and games smoothly 2. RAM (Random Access Memory) that can be upgraded if needed 3. Storage space of at least 500 GB 4. An operating system that will allow you to install your programs and games easily

What are 5 important things to consider when buying a computer?

The five things to consider when buying a computer are the processor, memory, hard drive size, graphics card and operating system.

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