Are you getting the following error message on your Windows operating system when starting your PC?
Windows is removing this device. (Code 21)
This device manager error indicates that Windows is in the procedure of removing the device and you must wait until Windows completes this task. It seems pretty straightforward, but it is not that simple due to this message getting stuck for an hour and after several reboots, same problem appears.
Cause
When you uninstall the driver, update Windows or install other third-party software, may damage some DLL file. This DLL may be related to a particular driver, for what you are getting Error code 21.
How to fix the error code 21 from Device Manager
Method 1: fix with advanced system repair tool
As we know, the most important reason behind “Code 21” is damaged, damaged or outdated device driver, so you need an advanced system repair tool that easily fixes Device Manager related issues. It also repairs missing or corrupted system files such as DLL files, exe files, sys files, OCX files, inf files, etc. Most of the time “Code 21” An error appears due to corrupted registry entries. The advanced system repair tool also takes care of the registry file and fixes the error easily.
Method 2: fix corrupted driver issues
As you know, the main reason behind Windows is removing this device. (Code 21) the device driver is damaged or damaged. So, uninstalling and reinstalling the device driver can fix your problem permanently. Just uninstall the driver from Device Manager and install the latest supported driver version.
1. Click on Start menu and search device. Now open Device administrator from the search result.
2. Select Problematic Device> right click in them and then select Properties.
3. Go to the Conductor tab and then click Uninstall to uninstall the driver.
4. Restart your PC.
5. Open Device administrator again and go to Action> Check for hardware changes.
Follow the onscreen instructions and fix device manager windows is removing this device. (Code 21).
Method 3: run the hardware and devices troubleshooter
Hardware troubleshooter it is an effective and simple way to fix any device related problem. Not only Windows is removing this device. (Code 21) but if you get any other error messages associated with Device Manager, running the Hardware Troubleshooter can give you a quick fix for this error.
1. Click on Start Menu and search fix problems. Click on Problem solving from search item.
2. Click See everything link in the left panel. It will open the entire troubleshooting menu.
3. Circumstances Hardware and Devices in the listing and click on it. It will start Hardware and device troubleshooting.
4. Click next to start the procedure.
Method 4: update driver manually
The above error is related to the driver software, so it is better to update the driver manually.
1. Click on Start Menu and look for the device. Click on Device administrator from the search result. It will open the Windows Device Manager.
2. Look for the driver, what does he have yellow exclamation mark Y the right button of the mouse in them and select Update the driver software. You must be connected to the Internet before updating the driver software.
3. Please select, “Search automatically for updated driver software”. Search the internet for the latest driver software.
4. If you already have a local driver software file, select “Search my computer for driver software” and find a local copy of the drivers.
Method 5: increase system memory
You must analyze the system memory to fix this problem. If your system is running out of a low memory hurdle, then the best option is to install additional RAM on your PC.
1. press Ctrl + Shift + Esc to open Task Manager. Click on More details.
2. Go to the Performance tab and analyze how much system memory is enabled for your use.
Method 6: modify the log file
Modifying the registry file is not recommended because incorrectly editing the registry file can severely damage your operating system. For more security, you should keep a backup copy of the log file before doing any operations on it.
1. Open Run command pressing Tecla de Windows + R and write regedit.exe
2. Find the following entries and delete them UpperFilters Y LowerFilters.
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{36FC9E60-C465-11CF-8056-444553540000}
3. Restart your PC.
Resume
With the purpose of Fix the error code 21 – Windows is removing this device from Windows 7, Windows 8, Windows 10 and Windows Vista, you must apply some special techniques which are explained well in this post.
