Hi
@Chris257
Your DS-2CD2385FWD-I will have one, which will be located beneath the SD card cover - see the second half of this guide:
In some cases, you’ll need to reset your Hikvision device to its inactive factory state. This could be if you’re passing the system on to somebody else; if you’ve forgotten your password; or simply if something has gone wrong during the configuration, meaning you need to start afresh. There are...
www.use-ip.co.uk
I'm afraid that your DS-2CD2342WD-I/B is one of the early models that does not have a reset button or microSD slot, so the only way to hard reset this is by connecting to it in a web browser, as covered in the first half of the above guide.