No PC is without problems before or after, although it is true that most of the time these come right after mounting it or after installing a new hardware component. It is common that, when this happens, the PC enters the BIOS directly as soon as the computer is turned on, and if this is your case, in this article we are going to tell you why it happens and what you can do to solve it .
This behavior of course is unusual on a PC since it normally loads the operating system, and in the POST screen before it automatically enters the BIOS it is probably giving you some clue of what is happening (such as example, which has detected an invalid overclock setting).
What to do if the PC enters BIOS automatically
In any case, most of the time that the PC enters the BIOS as soon as it is turned on it has to do with recently installed hardware, hardware that has been damaged or bad connections, so let’s see what you can do about it.
Check your hardware installation and connections
If you have just changed or added some hardware component on your PC and before doing so you did not have this problem, you have a clear clue of where to start looking. For example, if you have just changed the RAM to your PC, try removing it and putting it back and even installing it in other memory sockets on the motherboard, since if there is any hardware component that is not correctly connected it can cause the PC enter BIOS directly at power up.
Similarly, you should check all the hardware to make sure it is properly installed in its place, and this also involves checking the wiring and all the connections; most of the time this alone will solve the problem. With regard to RAM, make sure that in the event that you have two modules and the board has four sockets, you have installed them in the appropriate ones (consult your motherboard manual to know in which sockets to install the memory).
If after checking everything you still have the same problem, try doing a Reset CMOS (or you turn off and disconnect the equipment, remove the battery from the motherboard and put it back in after a couple of minutes, or if the motherboard does have you turn on with the Clear CMOS button). Sometimes it also helps to turn on the PC with all the peripherals disconnected, in case any of these were the cause of the problem.
Disable Fast Boot and check boot sequence
There are times when the Fast Boot mode of the motherboard causes problems, and there may also be the situation that for some reason the motherboard is not detecting your storage unit with the operating system and that is why it enters the BIOS when turning on .
To do this, in the BIOS go to Advanced Settings and then to Boot, where you must find the Fast Boot parameter and disable it. Save the changes and see if with this the system already boots correctly. Otherwise, go back to the BIOS in the boot sequence section and check that the storage device where you have the operating system installed is selected as the first in the sequence.
Use the Windows Startup Repair Tool
If none of the above has worked, you may need to repair the MBR, and for this the easiest solution is to use a CD / DVD / Pen Drive with Windows 10 to boot the computer. When it does, go to the Advanced Options and select the Startup Repair option.
On many occasions, this utility will automatically detect your computer’s startup problems and repair them without you having to do anything.
If the PC still enters the BIOS, try formatting
Most likely, if you have run into this problem when mounting a PC from scratch (in which you did not have an operating system installed) the problem lies in the hardware connections and that you have solved it by following the previous steps, but if it is not well, but it has arisen when installing new hardware, it is possible that the problem is in the software and not in the hardware.
Having to format the PC is not a dish of good taste, especially if you had things that you did not want to lose, but remember that you also have the possibility of simply reinstalling the operating system without having to format, in which case you will not lose your documents and files ( but the installed programs do).