The laptop does not turn on: what to do, how to find and eliminate the cause

Today, regular desktop PCs are often replaced by laptops, but, like all equipment, these devices tend to break. If the laptop does not boot, you do not need to panic, you need to find the reason and fix it. Most often, you can restore the equipment to work independently if you know how to troubleshoot.

Why the laptop does not turn on

There are many reasons. Most fix is ​​not difficult, but certain malfunctions may require the help of specialists.

The main reasons why the laptop does not boot are as follows:

1. Problems with the hard drive.
2. Power problems.
3. Incorrect BIOS settings or failure.
4. Damage to the video card.
5. OS crash.
6. Overheat.
7. Violation of the RAM.
8. CPU failure.
9. Windows crashes.

If the laptop starts to make a squeaky sound during boot, this indicates overheating or a malfunction of the device’s RAM. If there is some knowledge, then you can try to determine for yourself why this happened. Why do I need to first wipe the dust. If the breakdown is not fixed, you need to replace the RAM with working modules.

BIOS failure may occur due to improper updates. If the user performed such an operation before a malfunction occurs, contact a repair shop.

Failures in Windows cause the system to not boot. First you need to determine the cause and try to fix it. In addition, you can reinstall the OS or perform a system restore.

How to find and eliminate the cause

Most often, you can fix the problem yourself. First, you need to remember, after which the device stopped turning on correctly, were there any errors, were some programs loaded. Often this allows you to identify a malfunction.

Power outage

These problems are often the cause of the inability to start a laptop. Despite the fact that such a malfunction seems serious, it is usually very easy to identify and get rid of it.

The main malfunctions:

1. Violation of the integrity of the wire.
2. Incorrect power supply connection.
3. Violation in the power supply circuit.
4. BP failure.
5. Battery malfunction.

Typically, with these malfunctions, the device power indicator does not light. First you need to determine the correctness of the connected PSU and the fact that the wire is plugged into the network.

Damage to the cord can be caused by many reasons, among the most common: careless use or pets that may cut the cable. This can be determined visually.

Also a common reason is the battery. Sometimes, if the battery is not working, then the laptop does not turn on even through a 220 V network. You can try to get the battery and plug the device into an outlet without it.

The power supply often breaks on any gadgets. Without charging, the battery will run out after a while, after which the PC will not turn on. It’s easy to find out about a BP breakdown. You need to insert another charge from a work laptop.

Problems with the hard drive

If the hard disk malfunctions, the mobile PC cannot turn on, the device freezes on the Windows screensaver. Sometimes the system notifies you of an HDD error, for example, there is no boot disk.

One way or another, you can go into the BIOS, where to check whether the hard drive is determined. If available, you can turn on the laptop from the boot disk and determine the cause.

Video card failure

The causes are usually overheating, mechanical deformation after a fall, etc. PC behavior may vary. If the video card is broken, the picture will not appear on the screen, but you can hear the cooler.

It’s not possible to determine the cause yourself. And an attempt to repair a video card is almost impossible, it needs to be replaced.

After cleaning

Sometimes it happens that after cleaning the device does not turn on. Moreover, the cooler may work or a squeak will be heard.

Cleaning the device requires disassembling the laptop. The first thing to do to solve the problem is to open the case again and check all the connections of the elements.

If during cleaning the RAM dies were removed, then you need to remove them again, check the terminals and put them back. You also need to check whether the laptop turns on when the hard drive and drive are disconnected.

After update

If updates are not made correctly, the PC may not boot. If errors began to appear after a software update or Windows, then you can through safe mode to roll back the system, reinstall the OS, or return to the factory settings, if provided for in a laptop.

Spontaneous shutdowns

Sometimes the device can turn on and work without problems for a certain time, and then turn off spontaneously. There are a number of reasons for this:

1. Overheat.
2. Damage to parts.
3. Viral programs.
4. System crashes.

Overheating is the most common cause of spontaneous shutdowns and a restart of the laptop. Over time, this can completely disable the device. To prevent this, you need to regularly clean the laptop, change the thermal grease.

Damage to various elements also often occurs due to overheating. If periodic cleanings were not performed, then the appearance of this situation increases significantly.

Virus programs can disrupt the OS, as a result of which the computer may shut itself down. To fix the problem, you need to scan the system with antivirus.

Software crashes also often lead to spontaneous shutdown of the PC. You need to determine the cause using the codes that appear on the monitor during the failure. Then the problem program needs to be deleted.

Initialization does not occur

If the LEDs turn on, the fan is active, but there is no access to the hard drive (the corresponding diode is not lit), then initialization failed.

Likely reasons:

1. Violation of the north or south bridge.
2. Incorrect BIOS operation.
3. Failure of the processor, RAM or video card.

Windows does not load

The inability to load the operating system is most often not related to the presence of hardware failures. Therefore, you can try to reinstall the OS, roll back to the working state of the laptop, or use factory recovery tools.

In case of hardware malfunctions, as a rule, the inability to enter the operating system is due to problems with the hard drive. In this case, you need to install a new disk. Before this, you can try to diagnose with special programs by downloading from an external medium.

When to contact specialists

Modern mobile PCs emit quite a lot of thermal energy when working. If the cooling system is very dusty or malfunctioning, overheating starts, after which some elements of the PC may break. It is most often impossible to fix such a problem yourself; you must contact the workshop.

The main elements of a PC that fail after overheating:

1. Video card.
2. CPU.
3. Bridge graphic card.
4. Winchester.

There are many options for breakdowns of mobile computers. You can determine and get rid of many yourself. But if the device beeps, flashes or turns off and does not turn on at all, then most likely it can be repaired only in the workshop.