Do I have to buy Windows and programs like Word, Excel, … Again after resetting my laptop?
Windows is the operating system of the laptop. You can't just deactivate it by resetting, deleting, whatever…
Programs like Word etc. You just have to download it again. But since the purchase is usually regulated via a Microsoft account, you don't have to pay for it again.
No, because they are linked to your Microsoft account. You can download them all again with your Microsoft account login data. The same applies to programs from, for example, Adobe, everything is tied to your account. This is the case with almost all programs and other things are very, very selenium. Programs that you have bought in a store are also linked to the corresponding account.
No you don't have to. Since the laptop was shipped with Windows, the product key is permanently integrated in the BIOS. This reactivates automatically when you reset or do a clean reinstallation.
With Microsoft Office, the license is stored in your Microsoft account. To do this, go to https://setup.office.com/downloadoffice/ There you click on "Install using your Microsoft account" Then you can download it again. It then reactivates fully automatically after the installation. You don't have to enter the key anymore.
I recommend that you log in to Windows 10 with your Microsoft account as a user. All your settings will be saved there and will never be lost.
