Windows does not start: how to fix the cause and restore the system on your own

This instruction can help in solving basic problems, that is, when the operating system is not started (abbreviated as OS).
An example would be Windows 10 for a troubleshooting activity. These steps will also work for both the seventh and eighth versions.

Even the system does not boot.

In this case, even the operating system logo does not appear. Suddenly a black screen appeared, with errors written on it.
Additional devices need to be disabled.

The system cannot boot because one of the connected devices is faulty. It is necessary to disconnect absolutely everything, up to: USB drives, card readers, various printers, scanners, cameras, microphones, etc.

You need to reboot the computer after everything has been disconnected. If suddenly this does not help, then you also need to pull out the computer mouse and keyboard for a while, and then restart the computer or laptop again.
You need to check the status in the boot disk.

The layer that sits in the middle of Windows and the hardware of your computer is called the BIOS. It was in it that it could happen that the settings that are responsible for the correct boot of the computer were lost. If we take into account that the source of the operating system files is the wrong drive, then the system cannot start, since the device cannot find it.

1. You need to restart your computer.
2. After the launch occurs, you need to immediately press the button to enter the BIOS, before you see the settings menu. The buttons also depend on which manufacturer it is: Delete, F2, F8. Basically, the desired button immediately appears at the bottom of the screen immediately after switching on.
3. After you have managed to get into the BIOS settings, you need to find the Boot section (boot menu) and check if the disk has been installed, which contains the Windows system files in the first place in the list of downloads.
4. You need to select the option to save and exit the menu, in order to agree to the subsequent change.
After restarting your computer, the problem should go away.
Reset BIOS

If there is a big failure in the system, then the previous method will not help in any way. To do this, you need to reset the BIOS.
The computer boots, but Windows freezes, restarts, or a blue screen appears.
Windows may not boot normally due to incorrect updates, driver errors, and even third-party programs and viruses.

It is advisable to start the operating system in security mode. Safe mode is able to activate only basic components, without using unnecessary drivers and programs. If the whole problem is in them, then the operating system will safely boot and then it can be cleaned.

In order to boot into the safe mode of Windows version 8 or 10, you need to turn off the laptop, by pressing, you need to hold down the button that is responsible for the power and then press it again after 2-3 seconds, thereby turning on the computer. You need to repeat this action until the options that provide additional loading appear on your screen. On average, it is advisable to reboot at least three times. Next, click the troubleshooting button, then the additional parameters button, then the download parameters and the very last action will be to click on restarting the computer. After another reboot, select "Safe Mode".

In order to open Windows 7 in safe mode, you need to restart the computer, and immediately after it turns on, press the F8 or Fn + F8 button a couple of times (on laptops). Click further on the button that will open the safe mode.

After it turns on, you need to completely remove all the latest programs that were installed and then check with an antivirus. If all this does not help to cope with the problems, then you should open the menu. To restore Windows. Then open the settings and use another available option. The operating system is able to help you with this with its prompts.

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