Do you have to reinstall windows with a new motherboard and CPU(change them)

Generally speaking, the system must be reinstalled to replace the motherboard and CPU. Although everyone thinks so, after replacing them, you still can't wait to turn on the computer to see if you can enter system. If you successfully enter system, it goes without saying that the original system is compatible with the new hardware. If there is an error and cannot enter system, it is considered that the system must be reinstalled; is it necessary to reinstall system in this case, actually not necessarily, because the new hardware adds new things and sets them as default values, but the old ones are still retained, just modify it to the old one, maybe you can enter the system.

What is the relationship between whether to reinstall system and the degree of old and new hardware when changing motherboard and CPU? What should I do if the system cannot be accessed after replacing motherboard and CPU? Let's look at the first question first.

1. Do you have to reinstall windows with a new motherboard and CPU

Is the replacement of motherboard and CPU closer to the original motherboard and CPU, the less you need to reinstall system, and the farther the age is, the more you need to reinstall system? In fact, this is not necessarily true. The author once changed a motherboard with a difference of only about three years from the original motherboard, but the system must be re-installed; and for another motherboard with a difference of about seven years, the system cannot be entered for the first time, so enter the BIOS and modify it, then enter the system; as for what has been modified, let's look down.

2. What should I do if I can't enter the system after replacing motherboard and CPU(How to change motherboard without reinstalling windows)

Now the SATA mode of hard disk has added an AHCI mode, and it is set to the default mode by the new motherboard. If the original motherboard is in IDE mode, the program has been set to IDE mode according to the original motherboard when installing system, and the new motherboard is AHCI mode, an error will occur if IDE mode is not detected when entering system.

So after replacing motherboard and CPU, the system cannot be entered. First, you should enter the BIOS to see if the default mode of motherboard is the new AHCI mode. If you change it to IDE mode, you can enter the system. If you don't know where to change it, you can enter the BIOS to find the advanced settings. Generally, there are not many settings in the BIOS. You can find it with patience. If you find it, please refer to the motherboard manual.