Patching error code 21

This device manager error denotes that windows is in the process of removing the device and you need to wait until windows finished this task. Seems pretty easy but it is not such easy because this message gets stuông chồng for an hour and after several reboots, you get the same problem.

You watching: Patching error code 21

When you uninstall the driver, update windows or install other third-tiệc nhỏ software, may damage some DLL file. This DLL tệp tin may be related to lớn particular driver hence you are getting error code 21.

Method 1: Fix using Advanced System Repair Tool

As we know, that most prominent reason behind “Code 21” is corrupted, damaged or outdated device driver, so you need an Advanced System Repair Tool that easily fixes problems related lớn Device Manager. It also repairs missing or corrupted system files like DLL files, EXE files, sys files, OCX files, inf files etc. Most of the time “Code 21” error appears due lớn corrupted registry entries. Advanced System Repair Tool takes care of registry file too & fix error easily.

Method 2: Fix Corrupted Driver Problems

As you know that the core reason behind Windows is removing this device. (Code 21) is corrupted or damaged device driver. So, Uninstalling & Reinstalling Device Driver may fix your issue permanently. Just uninstall the driver from Device Manager và install the lakiểm tra version of the compatible driver.





Method 3: Run Hardware and Devices Troubleshooter

Hardware Troubleshooter is an effective sầu & easy way to lớn fix any device related issues. Not only Windows is removing this device. (Code 21) 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.


3. Find Hardware & Devices in the menu và clichồng on it. It will start Hardware & Devices Troubleshooting.


Method 4: Update Driver Manually

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

1. Clichồng on Start Menu và search for the device. Click on Device Manager from the tìm kiếm result. It will open Device Manager Windows.

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2. Search for the driver, which have sầu the yellow exclamation markright click on them và select Update Driver Software. You must be connected lớn the internet before updating driver software.
3. Select, “Search automatically for updated driver software”. It will search the mạng internet for the lademo driver software.
4. If you have sầu 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 lớn fix this problem. If your system is running out low memory issue then the mighty choice is installing additional RAM in your PC.


Method 6: Modify Registry File

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

Recommendation: It is better khổng lồ repair registry tệp tin using professional Advanced Repair Tool. It will automatically edit the required value & delete problematic values from registry tệp tin.

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In order lớn Fix Error Code 21 – Windows is removing this device from Windows 7, Windows 8, Windows 10 and Windows Vista, you need to apply some special techniques that are explained well in this article.

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