The fastest way to open Device Manager depends on your operating system

On Windows, the quickest route is to right-click the Start button and select Device Manager from the menu that appears. If that option doesn't show, press the Windows key and R together, type devmgmt.msc into the box that opens, and press Enter. On a Mac, Device Manager doesn't exist as a single tool — you'll use System Information instead, which you can find by clicking the Apple menu, selecting About This Mac, then clicking System Report.

Device Manager shows you every piece of hardware connected to your computer — your graphics card, sound card, network adapter, USB devices, and more. It also tells you whether each device is working properly or has a problem. You'll open it when you need to update a driver, troubleshoot a device that isn't working, or see what hardware you actually have.

Key Takeaways

  • On Windows 11 and 10, right-click the Start button and select Device Manager, or press Windows key + R, type devmgmt.msc, and press Enter.
  • On older Windows versions, search for "Device Manager" in the Start menu search box.
  • On a Mac, open System Information through the Apple menu to see your hardware details.
  • Device Manager shows you every connected device and whether it's working or has a driver problem.

Opening Device Manager on Windows 11 and Windows 10

The right-click method is the most direct. Click the Start button (the Windows logo in the bottom left), then right-click it. A menu will appear with several options — Device Manager is usually near the top. Click it and the window opens immediately.

If you don't see Device Manager in that menu, use the keyboard shortcut instead. Press the Windows key and R at the same time. A small box labeled "Run" will appear. Type devmgmt.msc (exactly as shown, with the period and three-letter ending) and press Enter. The Device Manager window will open in a few seconds.

A third option is to search for it directly. Click the Start button, then type "device manager" into the search box. Windows will show Device Manager in the results — click it to open.

Opening Device Manager on Windows 7 and Windows 8

These older Windows versions don't have the right-click Start menu option. Instead, click the Start button, then type "device manager" into the search box that appears. Windows will find it and show it in the results — click to open.

Alternatively, press Windows key + R to open the Run box, type devmgmt.msc, and press Enter. This method works on every Windows version from Windows 7 onward.

Finding hardware information on a Mac

Macs don't have a tool called Device Manager, but System Information shows you the same details about your hardware. Click the Apple menu in the top left corner of your screen, then click About This Mac. A window will open showing basic information about your Mac.

To see more detailed hardware information, click the System Report button in that window. This opens a more complete view that lists your processor, memory, storage, graphics card, and all connected devices — similar to what Device Manager shows on Windows.

You can also reach System Information by clicking the Apple menu, selecting System Settings (or System Preferences on older macOS versions), then looking for a Hardware or System Information section.

What you'll see once Device Manager opens

Device Manager displays your hardware organized into categories — Network adapters, Display adapters, Sound, video and game controllers, USB controllers, and others. Each category can be expanded by clicking the arrow next to it to show the specific devices underneath.

Next to each device name, you'll see either nothing (the device is working fine) or a warning symbol. A yellow triangle with an exclamation mark means the device has a problem — usually a missing or outdated driver. A red X means the device is disabled. Double-clicking any device opens a properties window with more details about that specific hardware.

Common reasons to open Device Manager

The most frequent reason is to update a driver — the software that lets Windows communicate with a piece of hardware. If a device stopped working after a Windows update, or if you installed new hardware and it's not recognized, updating the driver often fixes it. Right-click the device in Device Manager and select Update driver.

Another common task is disabling a device you don't use. If you have a built-in camera or microphone you want to turn off, you can right-click it in Device Manager and select Disable device. This is more thorough than just covering the camera with tape — it tells Windows to stop trying to use it.

You might also open Device Manager to check what hardware you have. If you're buying new software and need to know your graphics card model, or if you're troubleshooting a problem and need to tell technical support what devices are connected, Device Manager shows you everything.

Troubleshooting if Device Manager won't open

If the right-click method doesn't work, the keyboard shortcut almost always will. Press Windows key + R, type devmgmt.msc, and press Enter. If that fails, restart your computer and try again — sometimes a temporary system glitch blocks access.

If you're on a work computer, your administrator may have restricted access to Device Manager for security reasons. Contact your IT department to request access or to ask them to update a driver for you. On a personal computer, if Device Manager still won't open after a restart, you may have a deeper system problem that requires professional help.

Frequently Asked Questions

Can I update drivers from Device Manager?

Yes. Right-click the device you want to update, then select Update driver. Windows will search for a newer version online. You can also manually download a driver from the manufacturer's website and point Device Manager to it.

What does a yellow exclamation mark mean in Device Manager?

It means the device has a problem, usually a missing or outdated driver. Right-click the device and select Update driver. If that doesn't work, uninstall the device, restart your computer, and Windows will reinstall it automatically.

Is it safe to disable devices in Device Manager?

Yes, if you know what you're doing. Disabling a device you don't use won't damage anything. But disabling the wrong device — like your network adapter or graphics card — will cause problems. Only disable devices you recognize and don't need.

Why does Device Manager show devices I don't have plugged in?

Windows lists all devices it knows about, including ones that were connected before but aren't right now. This is normal. Devices with a down arrow or red X are disconnected or disabled — you can ignore them.