If your computer suddenly fails to recognize a newly connected device, stops detecting an existing component, or behaves unpredictably after a hardware change, there is a simple built-in solution in Windows that often resolves the issue. This solution is known as scanning for hardware changes. It allows the operating system to recheck all connected devices and refresh the hardware configuration without requiring a restart.
Whether you are using Windows 10 or Windows 11, the process is straightforward, but many users are unaware of the different methods available. Understanding how to perform this action properly can save time, prevent unnecessary troubleshooting, and help maintain system stability.
In this guide, you will learn exactly how to scan for hardware changes, why it is important, and the various methods you can use to perform this task effectively.
What Does “Scan for Hardware Changes” Do?
Before diving into the steps, it is important to understand what this feature actually does. When you perform a hardware scan, Windows re-enumerates all connected devices and checks for any changes in the system configuration. This includes newly installed hardware, disconnected devices, or components with outdated or missing drivers.
The process is particularly useful when a device is not showing up in “Device Manager” after installing new hardware, such as a graphics card or USB device, or when drivers fail to install correctly. Instead of restarting your system, this feature allows you to trigger detection manually.
How to Scan for Hardware Changes in Windows 10 or 11?
To scan for hardware changes in Windows 10 or 11, open “Device Manager”, click on your computer name at the top, then select “Action” from the menu and choose “Scan for hardware changes”. Windows will automatically detect and reinstall missing or newly connected devices.
Method 1: Using Device Manager
Step 1: Open “Device Manager”
The first step is accessing “Device Manager”, which is the central hub for managing all hardware components in Windows. You can do this by pressing the “Windows + X” keys together and selecting “Device Manager” from the menu. Alternatively, you can type “Device Manager” into the search bar and open it from the results.
Once opened, you will see a categorized list of all hardware devices currently recognized by your system.
Step 2: Select Your Computer Name
At the very top of the “Device Manager” window, you will find your computer’s name. This acts as the root node for all hardware components. Click on it once to ensure that the scan applies to the entire system rather than a specific device category.
This step is important because selecting a specific category limits the scan to only that section.
Step 3: Click on the “Action” Menu
After selecting your computer name, navigate to the top menu bar and click on “Action”. This menu contains several options related to hardware management.
The “Action” menu is where you will find the command to initiate the hardware scan.
Step 4: Choose “Scan for hardware changes”
From the dropdown menu, click on “Scan for hardware changes”. Once selected, Windows will immediately begin scanning for any new or missing hardware components.
You may notice devices appearing or refreshing in the list as the scan completes. If any drivers are missing, Windows may attempt to install them automatically.
Step 1: Launch “Device Manager” Quickly
Press “Windows + R” to open the Run dialog box. Type “devmgmt.msc” and press Enter. This command directly opens “Device Manager” without navigating through menus.
This approach is faster and preferred by advanced users who want quick access.
Once inside “Device Manager”, press the “Alt” key to activate the menu bar. Then press “A” to open the “Action” menu.
This keyboard-based navigation is useful when your mouse is not functioning properly or when you prefer shortcuts.
Step 3: Trigger the Scan
After opening the “Action” menu, press the corresponding key for “Scan for hardware changes”. Windows will execute the scan instantly.
This method is efficient and avoids multiple clicks.
Method 3 Scanning a Specific Device Category
Step 1: Open “Device Manager”
Access “Device Manager” using any of the previously mentioned methods.
Step 2: Expand a Device Category
Locate the category where you suspect a hardware issue, such as “Display adapters”, “Universal Serial Bus controllers”, or “Network adapters”. Click the arrow next to it to expand the list.
This step helps target a specific hardware area instead of scanning the entire system.
Step 3: Right-click on the Category
Right-click on the category name and look for options like “Scan for hardware changes” or “Update driver”.
Depending on your Windows version, the option may appear slightly differently.
Step 4: Initiate the Scan
Select “Scan for hardware changes” to refresh that particular category. This is useful when troubleshooting a single device rather than the whole system.
Method 4: Using Command Prompt
Step 1: Open “Command Prompt” as Administrator
Search for “Command Prompt” in the Windows search bar, right-click on it, and select “Run as administrator”. Administrative privileges are required for executing system-level commands.
Step 2: Use the “devcon” Tool
Windows does not include a direct built-in command for scanning hardware changes, but you can use the “devcon” utility, which is part of the Windows Driver Kit.
After installing the tool, type the command “devcon rescan,” and press Enter.
Step 3: Execute the Scan
Once the command runs, Windows will perform a hardware rescan similar to the “Device Manager” method. This approach is commonly used by IT professionals and system administrators.
Method 5: Restarting Plug and Play Service
Step 1: Open “Services”
Press “Windows + R”, type “services.msc”, and press Enter. This opens the Services management console.
Step 2: Locate “Plug and Play”
Scroll through the list and find the service named “Plug and Play”. This service is responsible for detecting hardware changes automatically.
Step 3: Restart the Service
Right-click on “Plug and Play” and select “Restart”. Restarting this service can trigger a hardware refresh and resolve detection issues.
This method is helpful when automatic detection fails.
When Should You Scan for Hardware Changes?
You should perform a hardware scan in several situations. If you have installed a new device and it is not recognized, a scan can force Windows to detect it. If a device disappears from “Device Manager”, scanning can bring it back.
It is also useful after uninstalling drivers, connecting USB devices that are not detected, or resolving hardware conflicts. Instead of restarting your computer repeatedly, scanning provides a quicker alternative.
Faqs
What does “Scan for hardware changes” do in Windows?
It forces Windows to re-detect all connected hardware devices and refresh the system configuration. This helps identify new devices or fix missing ones.
Is it safe to scan for hardware changes?
Yes, it is completely safe. The process does not modify your data or harm your system. It only refreshes hardware detection.
Why is my device still not showing after scanning?
This could be due to missing drivers, faulty hardware, or improper connections. You may need to install drivers manually or check the device physically.
Can I scan for hardware changes without “Device Manager”?
Yes, you can use tools like “devcon” or restart the “Plug and Play” service, although “Device Manager” is the most straightforward method.
Do I need to restart my computer after scanning?
In most cases, no restart is required. However, if changes do not take effect, restarting can help finalize the detection process.