Usually processor is soldered to the mainboard and can not be changed. Processor performance depends on the microchip manufacturer, which produces the processors for a series of laptops. Therefore, you can not change the processor in a laptop by yourself. It\u0026#039;s usual practice in large companies when there are discrepancies between processors, but it is impossible for you to do it by yourself, even if you dissemble the laptop. KeyTakeaways. It may or may not be possible in theory, but in reality it is not a reasonable thing to try to do. Processors are soldered to the motherboard, there is no way to unplug them. Heat sinks and fans are designed for one specific processor. Power supplies are designed for the power draw of one specific processor. The BIOS may have specific settings for a specific processor, or may be set up for the CPU that came with the laptop. Takeaway: Laptop processors can\u0026#039;t be changed. The reason: Why it is not Possible? Most of the time, you can\u0026#039;t actually \u0026quot;upgrade\u0026quot; the processor in a laptop. The reason is that the processor is already soldered onto the motherboard in most laptops. This means that it is impossible to remove the current processor and replace it with another one. It\u0026#039;s also impossible to use a processor from a desktop computer in a laptop because desktops and laptops use different processors with different connections. The only way to upgrade the processor in a laptop is to replace the entire motherboard, which costs at least as much as just buying a new laptop. Even if you could replace the motherboard with one that has better specs, you\u0026#039;d have to spend money on physically installing it, which requires taking apart your laptop and reassembling it afterward. With all of these caveats, why bother? Just buy a brand-new computer instead of upgrading your old one when it begins to slow down or misbehave.