Hello, if you want to connect your desktop to a wireless network (Wi-Fi) and if your PC don't have Wi-Fi card, the easier solution is to use an external Wi-Fi card in USB.
If you want to verify if you have an internal Wi-Fi card, or other possible solutions, please tell us the Product Number (P/N) from your PC.
If you need help for find this please check this document: https://support.hp.com/us-en/document/c03754824
What speed do you want for your Wi-Fi connexion??
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