Which make and Model? Was it originally Win10? If so there is probably a recovery option to reset to factory settings.
Personally I would install the latest Win10 Spring Creators Edition (April 2018) using the downloadable Media Creation Tool from Microsoft. The only slight downside is that this won't include the factory installed drivers and software but these can be found on the manufacturers website in most cases.
Might be worth downloading them before you do it anyway. Put them with your backup files.