Handy when you have several devices to connect
When you have a tablet or a handheld game console nearby that only connects over Wi-Fi, sharing your PC's existing internet connection lets you get them online without a separate router -- especially useful while traveling or working in a temporary space.
A few things worth checking before you rely on it
Since a hotspot shares one connection across multiple devices, it works best as a temporary solution rather than a permanent setup, and it's worth periodically changing the password if several people know it. If your network adapter is older, hotspot performance and range can also be noticeably weaker than a dedicated router.
Frequently Asked Questions
Does turning on the mobile hotspot slow down the internet I'm already using?
It can, since bandwidth gets split across every connected device based on how many are connected and how much data they use. The slowdown becomes more noticeable if several data-heavy devices, like ones streaming video, connect at once.
What if the Mobile Hotspot option doesn't appear in Settings at all?
This can happen if your network adapter doesn't support hotspot functionality or its driver is out of date. Updating the network adapter driver to the latest version resolves this in many cases.