Most users will find the most stable drivers through their PC manufacturer’s support site: Realtek RTL8821CE 802.11ac PCIE Adapter Driver Update
Installing the Realtek RTL8821CE 802.11ac PCIe adapter driver is a straightforward process. Here are the steps: realtek rtl8821ce 802.11ac pcie adapter driver
Run .exe or use Have Disk method in Device Manager if only .inf files are provided. Most users will find the most stable drivers