Easy way to fix Code 9 – Windows cannot identify this hardware

If you are receiving error code 9 – Windows cannot identify this hardware in device manager then you should read this article completely. Here, I will tell you some awesome way to fix this error in Windows 10/8/7 and other Windows Operating System.

You may get following error message when you try to install a device or driver in your windows pc.

“Windows cannot identify this hardware because it does not have a valid hardware identification number. For assistance, contact the hardware manufacturer. (Code 9)”



There may be various reasons behind this error but the main cause is that the device is faulty or your system specs don’t meet the device requirement. The driver also might be corrupted or incompatible. Missing system files, corrupted registry entries, system recovers from the virus/malware attack may also be the good reason behind error code 9 – Windows cannot identify this hardware error.

How to Fix Device Manager Error Code 9

Here, I am listing out some awesome techniques to fix this error. You apply the methods until your problems getting solved.

Method 1: Fix using Advanced System Repair Tool

As we know, that most prominent reason behind “code 9 – Windows cannot identify this hardware” is corrupted, damaged or outdated device driver, so you need an Advanced System Repair Tool that easily fixes problems related to Device Manager. It also repairs missing or corrupted system files like dll files, exe files, exe files, sys files, ocx files, inf files etc. Most of the time “code 9 – Windows cannot identify this hardware” error appears due to corrupted registry entries. Advanced System Repair Tool takes care of registry file too and fix error easily.

Method 2: Fix Corrupted Driver Problems

As you know that the core reason behind Error code 9 is corrupted or damaged device driver. So, Uninstalling and Reinstalling Device Driver may fix your issue permanently. Just uninstall the driver from Device Manager and install the latest version of the compatible driver.

1. Click on start menu and search for device. Now open Device Manager from search result.


2. Select Problematic Device > Right click on them and then select Properties.


3. Go to the Driver tab and then click on Uninstall button to uninstall the driver.


4. Reboot your PC.
5. Open Device Manager again and Go to Action > Scan for hardware changes.


Follow on-screen instruction and fix Device manager error code 9.

Method 3: Run Hardware and Devices Troubleshooter

Hardware Troubleshooter is an effective and easy way to fix any device related issues. Not only error code 9 but if you are getting some other error message that is associated with Device Manager, then running Hardware Troubleshooter may give you quick fix of this error.

1. Click on Start Menu and search for troubleshoot. Click on Troubleshooting from the search item.


2. Click View All link in the left panel. It will open all the troubleshooting menu.


3. Find Hardware and Devices in the list and click on it. It will start Hardware and Devices Troubleshooting.


4. Click Next to start the process.


Method 4: Update Driver Manually

Above error is associated with driver software, so it is the best idea to update the driver manually.

1. Click on Start Menu and search for the device. Click on Device Manager from the search result. It will open Device Manager Windows.


2. Search for the driver, which have the yellow exclamation mark and right click on them and select Update Driver Software. You must be connected to the internet before updating driver software.


3. Select, “Search automatically for updated driver software”. It will search the internet for the latest driver software.


4. If you have already a local file of driver software then select “Browse my computer for driver software” and browse a local copy of drivers.


Method 5: Increase System Memory

You must analyze system memory to fix this problem. If your system is running out low memory issue then the mighty choice is installing additional RAM in your PC.

1. Press Ctrl + Shift + Esc to open Task Manager. Click on More Details.


2. Go to Performance Tab and analyze how much System memory is available for use.


Method 6: Modify Registry File

Modifying registry file is not recommended because incorrect edit of registry file may harm your operating system badly. For added security, you must keep a backup of registry file before performing any operation on it.

1. Open Run command by pressing Windows Key + R and type regedit.exe


2. Browse for following entries and delete UpperFilters and LowerFilters.


3. Reboot your PC.
Recommendation: It is better to repair registry file using professional Advanced Repair Tool. It will automatically edit the required value and delete problematic values from registry file.


This article covers how to fix device manager error code 9 – Windows cannot identify this hardware. Unlike other driver manager error, this error may also get solved easily by rebooting your PC. However, there are also various methods are explained in this article.

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