Hi @mandyful
What is the model number of the laptop?
Sometimes manufacturers modify the drivers to suit their particular model needs.
As can be seen from this [https://www.realtek.com/en/component/zoo/category/rtl8821ce-software|link] the WLAN adapter manufacturer's drivers are from 2017.
This [https://h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/Realtek-RTL8821CE-802-11ac-PCIe-adapter-issue/td-p/7560051|link] however has links to later drivers for the WLAN adapter from HP and also Microsoft.
As always when downloading software manually, scan them for any viruses etc before installing ;-)