If you were trying to print some documents but encounter the HIDCLASS.SYS Blue Screen error instead, then you’ve come to the right place as this post will guide you in fixing any Blue Screen errors related to the HIDCLASS.SYS file. HIDCLASS.SYS is a Windows operating system driver file. HID or Human Interface Device includes Keyboards, mice, and other input devices.
HIDCLASS.SYS is a critical system driver file that is responsible for connecting different kinds of devices all over the system, including the functionality where a Word Processor can access the printer to print documents. This file comes under the category of kernel-mode device drivers and if the driver fails, it can result in a Stop Error. There are a lot of Stop errors related to the HIDCLASS.SYS file, such as:
The fixes for the Blue Screen errors related to the HIDCLASS.SYS files are pretty simple but before you troubleshoot the problem using these fixes, make sure that you boot your computer into Safe Mode with Networking first. After that, get started on these tips:
To fix the HIDCLASS.SYS error, you can also try to roll back, or update, or disable the concerned device drivers.
Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions or disable them.
The next thing you can do to troubleshoot the HIDCLASS.SYS Stop error is to plug in and out each one of the different hardware that is connected to your computer. Doing so will help you determine which one of the hardware is the one that’s triggering the error to pop up. You will also know what hardware drivers or anything else that could be causing this error which includes external devices like mouse, keyboard, printer, as well as internally attached components like the Graphics card and so on.
Running the ChkDsk utility can also help you resolve any Blue Screen errors related to the HIDCLASS.SYS file. To run this tool, refer to these steps:
Note: After you select the option, your PC will restart and check for memory-based issues. If it finds any issues, it will automatically fix them.
System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.
The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

Direct replacement for Apple M1 Chip is near. There were some M1 Chips versions like M1 MAX and M1 ULTRA that were upgrades of the existing M1 chip, but the new and upcoming M2 is something different and it is aiming to replace M1 completely.

Made in a 5-nanometer design, with 20 billion transistors and 100GB/s of unified memory bandwidth is meant to increase performance over M1. It has the same M1 8 core design with 4 high-efficiency cores and 4 high-performance ones.
All CPU and GPU cores are faster than their M1 equivalents and Apple states that when running M1 and M2 at the same power level M2 will perform 25% faster. The first version of the chip will place focus on power efficiency so if you are more on side of being a power user wait for the MAX or ULTRA version of M2.
M2 system on a chip like its predecessor M1 combines both CPU and GPU on a single chip with shared memory in order to increase performance compared to systems that have separate CPU and GPU. M2 so far has been only announced for MacBook Air and the 13-inch MacBook Pro that suppose to hit the market somewhere around July this year. Of course, we expect that M2 is included in future iPad series or Mac Mini series as well.
Error Causes“Secure Boot Violation The system found unauthorized changes on the firmware, operating system, or UEFI drivers. Press [OK] to run the next boot device or enter directly to BIOS Setup if there are no other boot devices installed. Go to BIOS Setup > Advanced > Boot and change the current boot device into other secured boot devices.”This kind of error message pops up due to the Secure Boot that protects your computer from running any non-OEM signed boot software during startup. In other words, the Secure Boot firmware is the one that scans for non-signed boot software each time your computer boots up and if it detects anything strange, it will block the boot and will display the error message. To fix this error, there are two things you can try. You can try to disable the Secure Boot or try using a System Restore Point. For more detailed instructions, refer to each one of the options provided below.
Code 21 is a Device Manager error code that appears when you try to use a hardware device attached to your computer and the Windows prohibits you from using it.
This is due to the Windows experiences problems loading the device driver. This error message is displayed in the following format:
“Windows is removing this device. (Code 21)”
Error CausesError code 21 means that Windows is in the device removal process and the device has not been completely removed. It occurs when you set a device to be removed and then select the same device to run on your system.
Upon your instructions, Windows start to remove that device and when you on the other hand try to use/access the same device that you selected for removal, it kicks up Code 21.
If you are experiencing error code 21 on your PC, it is advisable to resolve it immediately.
Though this error will not damage your system, but will significantly lower the performance of your PC which is definitely something you don’t want especially if you work on your computer daily and use it to perform important time-sensitive errands.
To repair and resolve, try the methods given below:
This is one of the best and easiest ways to resolve code 15 on your system. Wait for a few seconds, and then press the F5 key. This will update the Device Manager view and the error will most probably go away.
Sometimes error codes may pop up due to temporary glitches. To resolve such errors, a simple reboot of your PC is enough. Shut down Windows and then restart your system.
This is most likely to resolve Code 21. However, if the error still persists then this means the underlying problem for code 21 is deeper than you think. Try method 3 to resolve.
As mentioned earlier, the error code 21 may occur if you have selected a device to remove and then you try to reuse it.
To resolve, you may have to install the device again and the driver for that the reinstalled device. To reinstall the driver without any hassle, simply download DriverFIX.
It is a smart, user-friendly, and intuitive software program designed to resolve driver problems. The program is embedded with intelligent device identification technology which:
Furthermore, it enables accurate installation and ensures that your system is running at its optimal speed.
Other features that this program boasts are full backup and restoration, safe USB management, and ejection.
If nothing works, you can try the full backup and restoration feature and restore your PC to its previous state when it was functioning properly before the error occurred.
DriverFIX creates a backup of all your files and data hedging keeps you from disasters like data loss. It restores the system to the time when it was working properly.
Click here to download DriverFIX on your system and resolve error code 21 today.
nbtstat -R nbtstat -RR netsh int reset all netsh int ip reset netsh winsock reset