Fix Qualcomm Atheros Qca61x4a Driver Issue

One of the primary packages that install the Windows Media Player is the Media Feature Pack among other related files that are needed by the associated software products. And one of the essential DLL files in that package is the mfplat.dll file which is needed by various games and streaming services. So if this DLL file goes missing, you will most likely encounter any of the following error messages:

• “mfplat.dll missing”
• “The application failed to start because mfplat.dll was not found.”
• “The program can’t start because mfplat.dll is missing from your computer.”

In other circumstances, the Media Feature Package does not come pre-installed with the main Windows package especially for those who use Windows N, thereby causing the error to pop up. The main cause of this problem is that users who use Windows 10 N do not have the Media Feature pack pre-installed with the installation package. Aside from that, the installation package could go missing after a few Windows Updates or if you have uninstalled it by accident. To resolve this problem, you need to check out each one of the given options below.

Option 1 – Try to enable Media Playback via Command Prompt

If you encounter the mfplat.dll missing error when you attempt to run PLEX or other similar streaming service and you’ve already verified that the Media Feature Pack is indeed installed, you might want to try enabling it using an elevated Command Prompt. There are cases when a particular Windows Update ends up disabling the feature and creates the grounds which results in the mfplat.dll missing error. Thus, you can have to enable the feature via Command Prompt.

• Tap the Win + R keys to open the Run dialog box.
• Then type “cmd” in the field and hit Enter to open an elevated Command Prompt.
• Next, click on Yes if a User Account Control prompt pops up.
• After opening Command Prompt, copy and paste the following command and hit Enter to execute it:

dism /online /enable-feature /featurename:MediaPlayback

• Close Command Prompt and then open the app once again to check if the problem is now fixed.

Option 2 – Try installing the Media Feature Pack for Windows 10 N version

As mentioned, the Windows 10 N version does not come with Windows Media Player. Meaning to say, the Media Feature Pack is also not installed by default or won’t be updated by the Windows Update component. So if you are not quite sure what Windows 10 version you currently have installed, refer to these steps:

• Tap the Windows key + S and then type “about” in the search box.
• From the search results, click on the “About your PC” to open the About tab of the Settings app.
• Afterward, scroll down to the Windows specifications and check your Windows version under Edition.

Note: If you have verified that your PC is using the Windows 10 N version, you need to install the appropriate Media Feature Pack for your computer. How? Refer to the steps below:

• Click this link to download and install the Media Feature Pack from Microsoft’s official website.
• Upon installation, select the edition you want to install using the drop-down menu and then click on Confirm. Take note that there are few reasons why you’d want to install the older version since most streaming services like PLEX and most games usually require version 1803.
• After that, wait until the request is validated. The download should begin in a few minutes automatically.
• Once the download is completed, open the installation executable file and follow the next on-screen instructions to install the Media Feature Pack on your computer.
• Restart your computer. After your computer has rebooted, open the application where you’re getting the mfplat.dll missing error and then check if the problem is now fixed.

Option 3 – Try to extract a copy of the mfplat.dll file from the windows.old directory

If you encounter the error shortly after you just upgraded to Windows 10 from an older version, the best thing you can do to resolve the problem is to use windows.old directory to fetch an old copy of the mfplat.dll file. To do so, follow the steps below.

• Go to the Windows drive and then look for the windows.old directory where it preserves a copy of your old operating system as well as associated files in case something goes out of hand during the upgrade process.
• After that, open the windows.old folder and then go to the syswow64 folder.
• Next, from the syswow64 folder, copy the mfplat.dll file and paste it to C:/windows/syswow64.
• Restart your computer and check if the error is now resolved or not.

Error 451 - What is it?

This is a typical SMTP error code. SMTP is the abbreviation for Simple Mail Transfer Protocol. It is an internet standard for email transmission. In other words, SMTP is a text-based protocol in which the sender communicates with the mail receiver by issuing commands and receiving a response code. The SMTP error 451 is displayed in the following format:

‘451 Requested action aborted: local error in processing’

This error message indicates that the program cannot send more messages and the server has hit the limit. This is because some mail servers have limits. The sever stops the task of sending and receiving emails when this limit is achieved.

Solution

Error Causes

The causes of error 451 include:

• Server limit reached
• Email rejection due to a remote anti-spam filter
• Request denied by the server
• Viral infection

If you heavily rely on email communication with your business partners and colleagues, then it is advisable to immediately resolve this issue without any delays. Though this error is not fatal, you should repair it right away to avoid inconvenience. SMTP error code 451 can hamper your ability to communicate via email.

Further Information and Manual Repair

Here are some of the best, easy, and effective DIY methods that you can try to repair error code 451 on your PC.

Method 1

To fix this error, simply follow these steps:

• login to Linux SSH
• Open the file /etc/localdomains
• Nano/etc/localdomains and then add the domain name that is triggering email sending error
• Now reboot your PC

This will hopefully resolve the issue. Nonetheless, if the error code still persists, then try other methods given below.

Method 2 - Configure List Settings to change the server limit.

This can be done by accessing the List Settings then Outgoing Mail Server (SMTP) and then the Limit Feature. By accessing the limit feature, you can easily adjust the program to any limit of your choice. Configure the limit and save changes. Reboot PC to activate the changes made.

Method 3 - Scan and Remove Viruses.

This error code can also be triggered due to viral infection. If this is the cause, then simply download an anti-virus on your PC. Scan the entire system and remove all detected malicious programs like Trojans, malware, adware, viruses, and spyware. This will repair the error 451 on your system.

Method 4

If the error still persists, then contact your SMTP provider to check the situation and resolve it. There is a possibility the error is generated from the SMTP provider’s end.

SpeedItUp is a potentially unwanted application made by MicroSmarts LLC. The program claims to optimize RAM, clean the registry, and boost internet connection speed. It is designed to speed up your computer by removing some background processes. While not malicious itself, SpeedItUp Free and its variations are often installed via third-party installer bundles, causing many users to unwittingly install the program. Aliases of the program include CheckMeUp, SpeedCheck, SpeedChecker, SpeedItUp Free, Speeditup-Checkup, and Speeditup-Nova. While intended to speed up the performance, its background processes and startup tasks may actually slow PCs down in some cases. Some versions of SpeedItUp also include a browser extension.

About Browser Hijackers

Browser hijacking is a type of unwanted software program, usually a web browser add-on or extension, which causes modifications in the browser’s settings. Browser hijacker malware is designed for a number of reasons. Typically, browser hijacking is used for earning advertising revenue that comes from forced advert mouse clicks and website visits. Though it might seem naive, these tools are designed by vicious individuals who always attempt to take full advantage of you, so that hackers can make money from your naive and distraction. On top of that, hijackers can make the whole infected system vulnerable – other destructive malware and viruses would grab these opportunities to get into your computer effortlessly.

Symptoms of browser hijack

There are many symptoms that could indicate a browser hijacking: your web browser’s homepage is suddenly different; your web browser is constantly being redirected to adult sites; the default online search engine has been changed and your browser security settings have been brought down without your knowledge; discover new toolbars which you did not add; your internet browser displays endless pop-up windows; your internet browser has become unstable or starts running slowly; Inability to navigate to certain websites, particularly anti-malware as well as other security software sites.

How they infect computer systems

A browser hijacker can be installed on your computer or laptop if you check out an infected site, click an email attachment, or download something from a file-sharing site. They may also originate from any BHO, browser extension, add-on, toolbar, or plug-in with the malicious objective. A browser hijacker can also come bundled up with some freeware that you inadvertently download to your PC, compromising your internet security. An example of some notorious browser hijacker includes Babylon, Anyprotect, Conduit, DefaultTab, SweetPage, Delta Search, and RocketTab, but the names are regularly changing.

The best ways to remove a browser hijacker

Certain kinds of browser hijackers can be removed from the computer by deleting malicious applications or any other recently added shareware. Often, it can be a challenging task to discover and get rid of the malicious piece because the associated file could be running as part of the operating system process. Moreover, manual removals demand deep system knowledge and thus can be quite a difficult job for novice computer users. Experts always recommend users remove any malware including browser hijackers by using an automatic malware removal tool, which is better, safer, and quicker than the manual removal method. One of the greatest tools for repairing browser hijacker malware is Safebytes Anti-Malware. It will help you remove any pre-existing malicious software in your system and provides you real-time monitoring and protection from the latest threats. Together with the anti-virus tool, a PC optimizer will help you in deleting all associated files and modifications in the computer registry automatically.

Virus Blocking Internet And All Antivirus Software? Do This!

Every malware is detrimental and the effects of the damage will vary based on the specific type of malicious software. Some malware goes to great lengths to stop you from installing anything on your computer, particularly anti-virus software programs. If you are reading this article, you probably have got affected by a virus that prevents you from installing a computer security program such as Safebytes Anti-Malware. Refer to the instructions below to remove malware through alternative ways.

Install antivirus in Safe Mode with Networking

If the virus is set to load immediately when Microsoft Windows starts, getting into safe mode could block this attempt. Since only the minimum applications and services launch in Safe Mode, there are seldom any reasons for conflicts to occur. Listed here are the steps you have to follow to start into the Safe Mode of your Windows XP, Vista, or 7 computers (go to Microsoft site for instructions on Windows 8 and 10 computers). 1) At power on/start-up, tap the F8 key in 1-second intervals. This would conjure up the “Advanced Boot Options” menu. 2) Use the arrow keys to select Safe Mode with Networking and hit ENTER. 3) As soon as this mode loads, you should have an internet connection. Now, make use of your internet browser normally and navigate to https://safebytes.com/products/anti-malware/ to download Safebytes Anti-Malware. 4) After the software is installed, allow the diagnostic scan run to remove trojans and other malware automatically.

Obtain the anti-malware software in a different internet browser

Some malware mainly targets particular web browsers. If this is your situation, utilize another internet browser as it could circumvent the virus. When you suspect that your Internet Explorer happens to be hijacked by a trojan or otherwise compromised by cybercriminals, the most effective plan of action would be to switch to a different web browser such as Chrome, Firefox, or Safari to download your favorite computer security program – Safebytes Anti-Malware.

Run antivirus from a pen drive

To successfully eliminate the malware, you might want to approach the issue of running an antivirus software program on the affected computer from a different angle. Adopt these measures to employ a flash drive to clean your corrupted computer. 1) Download Safebytes Anti-Malware or MS Windows Defender Offline onto a clean PC. 2) Insert the USB drive onto the same system. 3) Double click on the exe file to open the installation wizard. 4) Select the USB stick as the destination for saving the software file. Follow the on-screen instructions to complete the installation process. 5) Unplug the pen drive. You may now use this portable antivirus on the infected computer system. 6) Run the Safebytes Anti-malware directly from the USB drive by double-clicking the icon. 7) Press the “Scan” button to run a full computer scan and remove viruses automatically.

Protect Your PC & Privacy With SafeBytes Anti-Malware

Do you want to install the very best anti-malware application for your computer system? There are several applications available that come in paid and free versions for Microsoft Windows computers. Some of them do a good job in eliminating malware threats while many will damage your computer themselves. You must opt for a company that builds industry-best anti-malware and has gained a reputation as reliable. When considering the reliable software programs, Safebytes Anti-Malware is certainly the highly recommended one. SafeBytes can be described as a powerful, real-time antivirus application that is designed to assist everyday computer users in protecting their computer from malicious threats. With its outstanding protection system, this tool will automatically detect and get rid of most of the security threats, which include viruses, adware, browser hijackers, ransomware, PUPs, and trojans. SafeBytes anti-malware takes PC protection to a whole new level with its advanced features. Let’s have a look at some of them below: Active Protection: SafeBytes provides 100 % hands-free real-time protection which is set to monitor, prevent and get rid of all computer threats at its very first encounter. They are very effective in screening and getting rid of numerous threats because they are continuously revised with the latest updates and alerts. Antimalware Protection: This deep-cleaning anti-malware software goes much deeper than most anti-virus tools to clean out your PC. Its critically acclaimed virus engine locates and disables hard to remove malware that hides deep inside your PC. SuperSpeed Scanning: SafeBytes’s very fast malware scanning engine lessens scanning times and extends battery life. At the same time, it will effectively identify and eliminate infected files or any online threat. Web Security: SafeBytes provides an instant safety rating about the web pages you are about to visit, automatically blocking dangerous sites and make sure that you’re certain of your online safety while browsing the net. Lightweight Utility: This program is not “heavy” on the computer’s resources, so you’ll not notice any performance difficulties when SafeBytes is operating in the background. Premium Support: Support service is readily available for 24 x 7 x 365 days through chat and email to answer your questions.

Technical Details and Manual Removal (Advanced Users)

If you wish to manually remove SpeedItUp without the use of an automated tool, it may be possible to do so by removing the program from the Windows Add/Remove Programs menu, or in cases of browser extensions, going to the browsers AddOn/Extension manager and removing it. You will likely also want to reset your browser. To ensure the complete removal, manually check your hard drive and registry for all of the following and remove or reset the values accordingly. Please note that this is for advanced users only and may be difficult, with incorrect file removal causing additional PC errors. In addition, some malware is capable of replicating or preventing deletion. Doing this in Safe Mode is advised.

The following files, folders, and registry entries are created or modified by SpeedItUp

Windows has tendencies to remember WIFI passwords so it can reconnect automatically to them. But from time to time we change passwords and Windows does not let us change it since he has network remembered. In this case, we will not be able to connect to the internet. In this helpful guide, we will let you know which steps you will need to take in order to solve this issue and to be able to connect to the internet again.

1. Restart Modem

   First thing first, restart your modem. Windows might see it as a new network and offer you to type in the password for it.

2. Update driver

   Sometimes the issue could be due to driver problems, open device manager and update WIFI driver or reinstall it.

3. Reset WIFI password

   Press ⊞ Windows + R type “Control” > hit Enter. Now click Network and Internet > Network and Sharing Center > Change adapter settings. Right-click on the connected Wifi and select Status. Click Wireless Properties, change the password from the Network security key section, and then click OK to reset your WiFi password.

4. Forget the network

   Click on Start > Settings > Network & Internet > Wi-Fi. Click the Manage known networks link Select the network you are looking for Select Forget.

5. Delete your WIFI profile

   Press ⊞ Windows + X to open the secret menu and click on Command prompt (admin) In command prompt windows type: netsh wlan show profile netsh wlan delete profile name=<profile name> Reboot

Updating your computer does not always end up successfully as there are a number of things that could go wrong with the Windows Update module in your Windows 10 computer. One of the issues you could face when you update your computer is error 0x80244019. This error could be caused by a number of factors. If you are currently having problems fixing this Windows Update error, read on as this post will help you resolve this problem. Here’s the full content of the error:

“There were some problems installing updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80244019).”

In this kind of Windows Update error, you might not be able to get the download file of the requested update started to your computer and this could be due to some third-party application or the overall internal components that contribute to the functioning of the Windows Update module. Refer to each one of the following options to fix the Windows Update error 0x80244019.

Option 1 – Restart your computer

The most basic thing you can do to fix the problem is to restart your computer. It usually works in fixing common issues like the Windows Update error 0x80244019. However, if it didn’t work, proceed to the next given options below.

Option 2 – Try to run the Windows Update Troubleshooter

The Windows Update Troubleshooter will help you in fixing error 0x80244019. This is a great built-in tool from Microsoft that helps users fix any issues with Windows Update. So this is worth a try to solve the problem. To use the Windows Update Troubleshooter, follow the steps below.

• Tap Win + I keys again to open the Windows Settings panel.
• Go to Update & Security and then go to Troubleshoot.
• Under the Troubleshoot section, on your left-hand side, scroll down to find Windows Update and then click on Run the troubleshooter option and follow the on-screen instructions and then see if it fixes the problem.

Option 3 – Try configuring the Windows Update-related Services

Configuring all the Windows Update-related services could also help in fixing the error as it makes sure that all the required services are available.

• Tap the Win + R keys to open the Run dialog box.
• Then type “cmd” in the field and tap Enter to open an elevated Command Prompt.
• Next, execute the following commands. Note that you have to type and enter each command one after the other.
  • SC config wuauserv start= auto
  • SC config bits start= auto
  • SC config cryptsvc start= auto
  • SC config trustedinstaller start= auto
• The commands you executed will make sure that the Windows Update-related services are available. Once it’s done, restart your computer and see if the Windows Update error is now fixed.

Option 4 – Run Windows Update in a Clean Boot State

It could be that some third-party application is the one that’s causing the problem so it’s best if you put your computer in a Clean Boot state. During this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the issue.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• After that, try to run Windows Update again.

Note: If you are able to install the app without any trouble at all then it means that the error is caused by some third-party application on your computer. You need to look for the culprit and uninstall it once you found it.

Option 5 – Try to fix the Proxy Settings

• In the Cortana search box, search for Internet Explorer and then click on the related search result.
• After that, tap the Win + T keys on your keyboard and click on Internet Options.
• Next, navigate to the Connections tab and click on LAN Settings.
• Then click on the Advanced button and delete all the entries in the list generated in the Exceptions section. And if the Advanced button is disabled because the “Use a proxy server for your LAN (These settings will not apply to dial-up or VPN connections)” option is disabled then you are good to go. Now proceed to the next step.
• Tap the Win + X keys or right-click on the Start button and select Command Prompt (Admin) or you could also search for “cmd” in the Cortana search box and right-click on Command Prompt from the search results and select the “Run as administrator” option.
• If a User Account Control appears, click on Yes to proceed. After that, type each one of the commands listed below, and don’t forget to hit Enter after you type each one of them.
  • netsh winhttp reset proxy
  • net stop wuauserv
  • net start wuauserv

• Now restart your computer and check if the problem is fixed or not by checking for Windows Updates again.

intelppm.sys blue screen of death is linked to an outdated driver, if you received this error do not sweat we have simple solutions for you. Please keep on reading in order to find out what can you do to fix this error.

1. Update driver Go to the device manager and manually update old-dated drivers. Note that this will take some time because you will need to update each device manually through the device manager but in the end, it will fix the issue.
2. Use automated application Instead of going through each device one by one manually get a dedicated driver fixing device like DRIVERFIX and update all drivers automatically.

In Windows 11 by default inside the Start menu, there is recommended section that contains recently opened folders, documents, and files. If you do not wish this section and do not want recent items in your Start menu there is an easy way to turn it off.

1. Press ⊞ WINDOWS + I to open settings
2. Click on Personalization
3. On the right side scroll down and click on Start
4. Click on the switch beside Show recently opened items in Start, Jump lists, and File Explorer
5. Close settings

Settings will be automatically applied and there will be no more recommended items inside your Start menu to create clutter, it will be nice and clean.

Resource hogging is a term when one single application or few of them are taking all system resources for themself causing extreme slow down in the computer and nonresponsiveness. It can be a very frustrating and time-consuming experience and it can cost you money if you can not finish work on time due to this effect. I believe that everyone has experienced at least one slowdown in their IT carrier because of resource-hogging applications and most users do not know how to deal with this. We are here to help you with this issue. Just to be aware that this method shown here is not a method to miraculously speed up your PC or anything similar, this is to be able to detect and recover from extreme slowdowns. Hardware components are still very important and if you can upgrade your computer if it is outdated, please do it because new applications will require a more modern system, and not any kind of tips and tricks will save you from outdated hardware.

Identifying resource hogging app

Now when we got that out of the way let's talk about slowdowns, it is no secret that sometimes an application has bugs and memory leaks that can cause this kind of behavior, and sometimes the application simply takes up too much memory for any other application to work normally. The most simple and straightforward way is to bring up a Windows task manager and inspect running applications and services. You can bring task manager by the key combination of CTRL + SHIFT + ESC If the system is in deep memory deficit you will have to wait for the task manager to open and show itself on-screen. Once opened, click on more details if that view is not opened by default. Once the view expands you will see all running applications with how much RAM memory have they taken and how much CPU they are using.

What to do with app?

Now you are presented with a choice on what to do with the problematic application. If you press the end task button on the bottom right, Windows will kill the application and its processes but any unsaved work inside the application will be lost and unrecoverable in most cases. Or you can try to remove smaller applications running to free up more memory and CPU in order for the computer to catch up. Any choice you make is up to you, but be very careful not to kill Windows essential service by mistake, that will cause immediate system instability with high chances of a system crash.

Recently, a number of users reported that they weren’t able to download anything from the internet after they’ve updated their Windows 10 computers. This kind of problem occurs because of some Internet options settings located in the Control Panel. Based on the reports, this issue has been known to occur in all kinds of browsers and not only on Microsoft Edge. Not being able to download anything from the internet is a huge problem since almost everything is wrapped around the internet. To resolve this problem, here are some suggestions that you can try.

Option 1 – Temporarily disable Firewall and third-party antivirus

Firewall and antivirus programs are known to block files the instant it detects a threat to the system. However, there are some cases when it can also block a file even when it’s a safe one. Thus, your antivirus or firewall programs might be the reason why you can’t download anything on your Windows 10 computer. To isolate the issue, you need to temporarily disable both the Firewall and antivirus programs and then check if you can now download anything from the internet. Do not forget to enable them again as disabling them can leave your computer vulnerable to cyber threats.

Option 2 – Try changing the Internet Options settings

According to users, changing the Internet Options settings helped them resolve the problem. There are times when the drive location in your Internet Options settings is not the system drive, chances are, it will cause the error to pop up which is why you need to make sure that it’s correct.

• Go to Control Panel and search for Internet Options and open it.
• Next, go to the General tab and click on Settings.
• From there, check if the drive location is “C:”. If it is, close the window, otherwise, click on the “Move folder…” option, and then select your preferred folder under drive C: and click OK.
• Now restart your computer and check if changing the Internet Options settings helped in fixing the problem.

Option 3 – Try clearing browser data

There are instances when browser data can cause issues in downloading files online. And so you can try to clear your browser’s data. This might be a very basic solution but oftentimes it works in fixing this kind of error. Follow the steps below to clear the data in your browser.

• Open your Google Chrome browser.
• After that, tap the Ctrl + H keys. Doing so will open a new panel that allows you to delete the browsing history and other data in your browser.
• Now select every checkbox that you see and click on the Clear browsing data button.
• Then restart your Chrome browser and check if you can now open any website or not.

Option 4 – Get rid of any conflicting browser extensions

• Open Chrome and press Alt + F keys.
• Go to More tools and click Extensions to look for any suspicious browser extensions or toolbars.
• Click the Recycle bin and select Remove.
• Restart Chrome and press Alt + F keys again.
• Proceed to On Startup and mark Open a specific page or set of pages.
• To check if the browser hijacker is still active, click Set pages, if it is active, overwrite the URL.

Option 5 – Try to remove Proxy

Removing the Proxy might also help you in fixing the connection issue in Cortana. Here’s how you can do it:

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 6 – Try reinstalling your browser

If none of the options given above worked in fixing the problem, you can try to reinstall your browser. There are times when the browser wasn’t installed properly which can cause several issues like not being able to download anything from the web. Thus, reinstall your browser and see if that helps.

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:

• KMODE EXCEPTION NOT HANDLED
• SYSTEM SERVICE EXCEPTION
• DRIVER POWER STATE FAILURE
• PAGE FAULT IN A NONPAGED AREA
• SYSTEM THREAD EXCEPTION NOT HANDLED
• DRIVER VERIFIER IOMANAGER VIOLATION
• IRQL NOT LESS EQUAL

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:

Option 1 – Update or rollback or disable concerned device drivers

To fix the HIDCLASS.SYS error, you can also try to roll back, or update, or disable the concerned device drivers.

• Open the Devices Manager from the Win X Menu.
• Then locate the device drivers particularly the ones that are under the sections of Keyboard, Mouse, USB, and HID Drivers.
• Next, right-click on them to open the Properties.
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

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.

Option 2 – Check for any incompatible devices

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.

Option 3 – Try running the ChkDsk utility

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:

• First, open This PC and right-click on your operating system partition for Windows.
• Next, click on Properties and navigate to the Tools tab.
• Then click on Check under the Error Checking section.
• After that, a new mini window will be opened and from there click on Scan drive and let it scan your disk drive partition for any errors and then restart your computer.

Option 4 – Try checking the Memory for any errors

• Tap the Win + R keys to open Run and type exe and hit Enter to open the Windows Memory Diagnostic Tool.
• After that, it will give two options such as:
  • Restart now and check for problems (Recommended)
  • Check for problems the next time I start my computer
• Once your computer has restarted, perform a basic scan or you could also go for the “Advanced” options such as “Test mix” or “Pass count”. Simply tap the F10 key to start the test.

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.

Option 5 – Run the System File Checker

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.

• Type “cmd” in the Start search and then right-click on the appropriate search result.
• Next, select “Run as administrator” to open Command Prompt with admin privileges.
• After opening Command Prompt, type in sfc /scannow

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:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Now restart your computer and see if the Blue Screen error is fixed or not.