I bought a laptop 4 years ago. It has now become slow after a while. Windows 10 Home was already preinstalled. If I reset Windows to the factory settings, do I lose my Windows license?
No, it will remain
The Windows license is retained.
The pre-installed Windows license is retained. As a rule, the license is stored on the mainboard so that you can also put in another hard drive and completely reinstall Windows.
No. It should be connected to the computer anyway. But of course you can read them out or connect them to a Microsoft account.
(ZebNet Keyfinder)
You never lose your license. If the laptop was shipped with Windows 10, the product key is permanently integrated in the BIOS. It is automatically adopted and activated without having to enter it.
Instead of resetting, I would rather reinstall Windows 10 cleanly. It works like this:
Download the Media Creation Tool https://www.microsoft.com/...ndows10%20 With this you can create a Windows 10 USB boot stick. The tool also packs all current updates onto the stick.
Boot the created stick. To do this, plug it in, switch on the laptop and immediately press F2. You are now in the BIOS. Then put the stick first in the boot sequence. Save and exit.
The laptop reboots and boots the stick. Just follow the instructions of the wizard. It offers the possibility to delete everything. One should do that. The laptop will restart several times during the installation.
After the installation is complete, the last restart takes place. Then Windows 10 starts and reactivates fully automatically. For this, the product key that is in the BIOS is automatically adopted.
The last step is to go to the manufacturer's website for your laptop. Download and install the drivers there.
The stick should be kept well for emergencies. You can also use it to repair Windows.