Wired and wireless mice both plug in the same way
A wired mouse connects to your computer through a USB port — the rectangular slot on the side or back of your desktop, laptop, or monitor. Plug the mouse cable into any available USB port and your computer will recognize it when ready. Most wired mice work right away without needing software or setup.
A wireless mouse uses radio signals instead of a cable. It comes with a small receiver (sometimes called a dongle) that plugs into a USB port, and the mouse communicates with that receiver. Wireless mice also work without extra software in most cases, though some gaming or specialty mice may ask you to install a driver for extra features.
Both types work on Windows, Mac, and Linux computers. The connection process is the same: plug in the cable or receiver, and the mouse is ready to use.
Key Takeaways
- Wired mice plug directly into a USB port on your computer; wireless mice use a small receiver that plugs into a USB port instead.
- Most mice work when ready after plugging in without needing any software or driver installation.
- If your mouse does not move the cursor after plugging in, try a different USB port or check that batteries are installed in a wireless mouse.
- Bluetooth mice pair through your computer's settings rather than using a receiver, though this is less common for standard mice.
Where to find USB ports on your computer
USB ports are small rectangular slots, usually black or white, found on the edges of your computer. On a desktop tower, check the front panel first — most have two or four ports there for straightforward access. The back of the tower has additional ports. On a laptop, USB ports run along the sides. On an all-in-one desktop or monitor, ports are usually on the back or sides of the stand.
Any USB port works for a mouse. You do not need a specific port or a special one. If all your ports are full, a USB hub (a small box with multiple ports) plugs into one port and gives you more.
Setting up a wireless mouse
Wireless mice come with batteries already installed or with batteries in the box. Check inside the battery compartment on the bottom of the mouse — if the batteries are there, you are ready to go. If not, open the compartment and slide in two AA or AAA batteries (the size is printed on the mouse or in the manual).
Plug the receiver into a USB port. The receiver is a small stick or box, usually about the size of a lighter. Your computer will detect it within a few seconds. Move the mouse and the cursor should move on your screen. If it does not, try a different USB port or check that the batteries are fresh.
Some wireless mice have a power button on the bottom. Make sure it is turned on. A small light on the receiver or mouse usually glows to show the connection is active.
Connecting a Bluetooth mouse
Some mice connect through Bluetooth instead of a receiver. These are less common for everyday mice but more common on laptops and tablets. To pair a Bluetooth mouse, first turn on the mouse and make sure Bluetooth is turned on (check your computer's settings or the keyboard shortcut — usually Fn + a function key with a Bluetooth symbol).
On Windows, go to Settings > Devices > Bluetooth & other devices and click "Add device." On Mac, go to System Preferences > Bluetooth and click "Set Up New Device." Your mouse should appear in the list. Click it to pair. Once paired, the mouse connects automatically whenever it is turned on and in range.
Bluetooth mice usually take longer to set up than wired or wireless receiver mice, but they do not need a separate receiver.
Troubleshooting a mouse that will not work
If you plug in a mouse and the cursor does not move, start with the simplest fixes. Try a different USB port — sometimes a port stops working. If it is a wireless mouse, check that the batteries are installed and fresh. Replace them if they are more than a few months old.
Restart your computer. This clears out any connection glitches and usually fixes the problem. After restart, plug the mouse in again and wait 10 seconds for your computer to recognize it.
If the mouse still does not work, check whether your computer recognizes it at all. On Windows, right-click the Start button and open Device Manager. Look for "Mice and other pointing devices" and expand it. You should see your mouse listed. On Mac, go to System Report (in About This Mac) and click USB. Your mouse should appear in the list. If it does not appear, the port may be broken or the mouse may be defective.
When to install mouse software or drivers
Most mice work without any software. However, some gaming mice, ergonomic mice, or mice from specialty brands come with a driver or software that adds features like programmable buttons, sensitivity adjustment, or custom colors. If your mouse came with a CD or a manual that mentions software, visit the manufacturer's website to read the latest version.
Install the software before plugging in the mouse, or plug in the mouse first and then install the software — either order works. After installation, restart your computer. The extra features will then be available through the software's control panel.
If you lose the CD or cannot find the software online, the mouse will still work fine without it. You just will not be able to customize the extra buttons or settings.
Connecting a mouse to a laptop or tablet
Laptops have USB ports on the sides, usually one or two. Plug a wired or wireless receiver mouse into any of these ports and it works the same way as on a desktop. If your laptop has no USB ports (some newer models use USB-C instead), you will need a USB-C to USB adapter, which costs a few dollars.
Tablets like iPads usually do not have USB ports at all. Instead, they connect to Bluetooth mice. Pair the mouse through the tablet's Bluetooth settings, and it will work like a trackpad. Not all apps on tablets support a mouse cursor, but most do.
Frequently Asked Questions
Can I use any mouse with my computer?
Almost any mouse works with any computer. Wired and wireless mice work on Windows, Mac, and Linux. The only exception is very old mice with serial connectors (round plugs), which do not fit modern USB ports. If you have an old mouse, a USB adapter can make it work, but buying a new mouse is usually cheaper.
Why is my wireless mouse cursor jumping or freezing?
Weak batteries are the most common cause. Replace them with fresh ones. If that does not help, move the receiver closer to the mouse or away from other wireless devices like routers or microwaves, which can interfere. Try a different USB port as well — some ports have weaker connections than others.
Do I need to turn off my mouse when I am not using it?
Wireless mice have an on/off switch to save battery life. Turn it off if you will not use the computer for hours. Wired mice do not have a switch and do not use batteries, so there is nothing to turn off. Bluetooth mice drain battery faster if left on, so turning them off extends battery life.
What if my mouse has a scroll wheel that does not work?
The scroll wheel is part of the mouse itself, not a separate connection. If it does not work, the mouse may need a driver update (check the manufacturer's website) or the wheel may be dirty. Clean it gently with a dry cloth. If it still does not work, the mouse may be defective and need replacement.
Can I connect multiple mice to one computer?
Yes. Plug in or pair as many mice as you want, and they all work at the same time. The cursor moves based on whichever mouse moved last. This is useful if you want a backup mouse or if multiple people are using the same computer.