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Qtcore4.dll Error - What is it?

Qtcore4.dll is a dynamic link library file that helps Microsoft Windows in loading several key components of the system. The Qtcore4.dll error occurs when the Qtcore4.dll file cannot be loaded to run the application supported by this .dll file. The Qcore4.dll missing error message may occur while booting your system or launching a certain program. It is a blue screen of death error type. The Qtcore4.dll error code is often displayed as:

BLUE SCREEN ERROR - QtCore4.dll Not Found

Filei386QtCore4.dll could not be loaded. The error code is 7. Setup cannot continue. Press any key to exit.

Solution

Error Causes

This error code is triggered by a variety of reasons such as:

• Windows file allocation file gets damaged
• Your computer BIOS (Basic Input/Output System) are misconfigured
• The Qtcore4.dll file gets corrupt
• Registry gets damaged and corrupt
• Non-Microsoft program not running in tandem with Windows
• Malware attack
• Improper hardware driver software

It is advisable to fix the Qtcore4.dll error code immediately as this error can pose serious threats to your system. Qtcore4.dll error can lead to system breakdown.

Further Information and Manual Repair

Here are some ways of fixing the Qtcore4.dll error on your system:

1. Re-install the Program Causing Qtcore4.dll error message to pop up

As dll files are shared files sometimes due to program deletion and installation .dll file settings can get misconfigured, damaged, and corrupt. In such a scenario, you can try reinstalling the program that is causing Qtcore4.dll error message to appear on the screen.

2. Reconfigure your Mis-configured BIOS

If BIOS misconfiguration is the cause of this error code on your system, then try reconfiguring your system’s misconfigured BIOS.

• To do this boot the computer and then press the BIOS designated keys to enter the BIOS. The keys may vary from manufacture to manufacture but typically, the setup keys are F2, F10, F12, and Del.
• Once you figure out the setup keys, press them rapidly when booting the computer.
• After successfully hitting the setup keys, the BIOS will load and you will see the BIOS setting menu on your screen. Adjust settings. Go to SATA Operation and change RAID AHCI to RAID ATA. Save changes and then exit.

3. Scan Your PC with a Registry Cleaner and an Antivirus

However, after adjusting the BIOS if the error still pops up on your screen, then this indicates the problem is bigger than you think. It triggers either malware attack or registry corruption. If these are the underlying causes for the Qtcore4.dll error on your system then you need to scan your PC with a registry cleaner and an antivirus. Registry is the main database of your system; if this gets corrupt it is most likely to result in system failure and valuable data loss. And as for malware, the biggest concern is data security threats. Today’s advanced and lethal malware like viruses and spyware can give easy access to hackers to enter your system from a remote location, browse through your confidential and private data and manipulate it to their advantage. This has led to a surge in various types of cyber crime, data breaches, and identity theft cases over the years. To avoid all this while resolving the error code Qtcore4.dll on your PC, registry cleaning and repair and antivirus scan are needed. You can either download 2 separate tools on your system to scan your PC which by the way will take a lot of time and increase your chances of the system slow down or you can download Restoro.

Why Restoro?

• Total System Care is an advanced, user-friendly, high, and multi-functional repair.
• It is deployed with a powerful and intuitive registry cleaner. It also functions as a system optimizer. It spares you from downloading numerous tools to address and resolve different errors on your PC.
• It is your one-stop solution for not only Qtcore4.dll problems but practically all PC-related issues.
• The registry cleaner utility detects all the malicious, unnecessary, and obsolete files overloading and corrupting your RAM.
• This includes junk and temporary files. It wipes them out thus clearing your disk space. Simultaneously, it also repairs the damaged and misconfigured dll files including the Qtcore4.dll file, and fixes the corrupt registry.
• The privacy error utility has the properties of an antivirus. It detects and removes malware, viruses adware, and spyware from your system in seconds.
• Total System Care resolves the Qtcore4.dll error on your system and boosts the performance of your system. It has a simple and neat interface which makes it quite easy for users to operate it, even those who are not technically adept.
• It is compatible with all Windows versions

Click here to download Restoro and repair the Qtcore4.dll error on your PC.

If you are trying to connect an external device to your computer but you suddenly encounter an error that says, “Device requires further installation”, then you’ve come to the right place as this post will guide you on how exactly you can fix this error. In most cases, USB sticks, headphones, speakers, and other external devices, install drivers automatically once you connect them to your computer which means that the drivers are downloaded and installed in the system as soon as the external device is plugged in. However, if the driver has become corrupted or outdated, you might encounter an error like the

“Device requires further installation”

Aside from corrupted or outdated drivers, the error could also be caused by pending updates, an incorrect version of the Intel PROSet Wireless driver, or checking the wrong event. Whatever the cause is, this post will provide you with some potential fixes that can help you resolve the problem. But before you troubleshoot the problem, ensure that your Windows 10 computer is updated to its latest version and you must also not forget to check that you’re checking the correct event on the Event Viewer. Once you have these things covered, proceed to the instructions below.

Option 1 – Try to update the device drivers to the latest version

One of the most likely root causes of the “Device requires further installation” error is either outdated or corrupted drivers in your computer. This kind of problem is more common on several devices like scanners and printers for which the drivers are provided with them.

• First, boot your computer into Safe Mode.
• After that, tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. From there, look for any outdated device drivers and click on each one of them.
• After that, right-click on each entry of the device drivers and select the “Uninstall Device” option from the menu.
• Now restart your computer.
• After restarting your computer, go to the Settings app and Check for Updates in the Windows Update section.

Note: You also opt to download the latest versions of the device drivers directly from the website of the manufacturer. Once you’ve downloaded them, you can install them into your computer right away and then try connecting the external device again. On the other hand, you can also try to reinstall the device drivers.

Option 2 – Try to install the latest version of the Intel PROSet Wireless driver

A lot of users who experience the problem reported that their wireless driver wasn’t also working properly and it was then found that it was caused by the outdated Intel PROSet wireless driver. Thus, to fix the problem, you need to install the latest version of this driver from the intel.com website and install it on your computer. When you download the driver, make sure that your computer is running an Intel system and then download the correct driver depending on whether your computer is a 64-bit system or a 32-bit one.

One of the most useful utilities for advanced users in Windows is the Windows command line or Command Prompt. It is efficient in fixing system files, checking the disk for errors as well as other intensive tasks that are made convenient using this. One of the tasks you can carry out using Command Prompt is repairing the Windows bootup process if it encounters any issues. However, if you tried running the “bootrec/fixboot” command and you receive an error message saying, “Element not found”, read on as this post will guide you in fixing this error. This kind of error in the command line could be due to a damaged BCD or MBE, inactive system partition, or it could also be that there is no drive letter being assigned to the EFI partition. Whichever the case is, here are some possible fixes that should help you resolve the problem.

Option 1 – Try to repair BCD

As mentioned the error could be caused by a damaged BCD and so to fix the problem, you need to repair BCD by following these steps:

• First, make sure that you have a bootable Windows 10 USB drive with you and use it to boot your computer.
• Once you’re on the Welcome Screen, click on Next.
• After that, click on Repair your computer located at the bottom-left portion of the window.
• Then select Troubleshoot > Advanced Options > Command Prompt.
• After you open the Command Prompt window, execute the following command:

bootrec /fixboot

• Afterward, enter the next command below to rename the BCD file:

ren BCD BCD.bak

• Next, type the following command and make sure to replace “b:” with the letter of your bootable drive attached to your computer.

bcdboot c:Windows /l en-us /s b: /f ALL

• Now, wait until the process is completed and restart your computer to successfully apply the changes made.

Option 2 – Try assigning the drive letter to the EFI partition

• Tap the Win + X keys or right-click on the Start button and click on Command Prompt (Admin) to open Command Prompt with admin privileges.
• Then type the following command to start the Diskpart utility:

diskpart

• After that, if you receive a UAC prompt, just click on Yes to proceed.
• Next, type the following command to list all the volumes created on your PC including both types of partitions that are visible to a normal user in the File Explorer as well as the ones created by Windows 10 by default which helps it in storing the boot files and other important system files:

list volume

• Now type the following command to select the desired volume:

select volume number

• Then type the following command to assign a letter to the selected volume:

assign letter=<LETTER>

Note: Make sure to replace “<LETTER>” with the letter you want to allocate to that partition. Afterward, it will assign a letter to the selected volume.

• Reboot your PC to apply the changes made.

Option 3 – Try setting the System Partition to Active

Like the first given option, you also have to make sure that you have a bootable Windows 10 USB drive before you proceed to set the System Partition to Active. Once you have it covered, refer to these steps:

• Boot your computer using the bootable Windows 10 USB drive.
• Next, click Next when you get to the Welcome Screen.
• Then click on Repair your computer located at the bottom left part of the window and select Troubleshoot > Advanced Options > Command Prompt.
• After opening Command Prompt, type the following command and hit Enter to start the Diskpart utility. It is a command line-based utility just like Command Prompt but has a UAC prompt once you provoke it. So if you encounter a UAC prompt, just click on Yes to proceed.

diskpart

• Now type the following command:

list disk

• From there, select your primary disk by typing the following command:

select disk number

• After that, list all the partitions on the selected disk by entering the following command:

list partition

• The command you just entered will list all the partitions created on your PC including both types of partitions that are visible to a normal user in the File Explorer as well as the ones created by Windows 10 by default which helps it in storing the boot files and other important system files.
• Now type the following command to select the partition that is usually around 100 MB in size:

select partition number

• Finally, type the following command to mark the partition active:

active

• Then type the “exit” command to exit the disk part utility.

Error 0146 - What is it?

Dell laptop is a great choice for laptop users who like to have the best configuration, fast working platform, and long warranty period. But this does not mean that your errors can’t pop up on Dell laptops. Users can experience a variety of hardware and software-related issues on Dell laptops. And one such error is the error code 0146. This is a typical Dell laptop hard drive-related error code. It can cause your Dell laptop to freeze and system applications to stop responding for a long period of time. Therefore, it is recommended to fix the error immediately.

Solution

Error Causes

Error 0146 may be triggered due to several reasons on your system. These include:

• Program corruption
• Viral infection
• Hard drive issues

Further Information and Manual Repair

The good news is that error 0146 is easy to fix. Here are some of the easy do it yourself methods that you can try to resolve error 0146 on your system:

Method 1 - Run a Virus Scan

Malware and viruses can corrupt and damage the hard drive and trigger error 0146. In such an event, it is recommended that you open your antivirus, update it and run a full virus scan on your PC. Once the scan is complete, remove all the viruses. This will hopefully resolve the error 0146.

Method 2 - Run Your Laptop in Safe Mode and Clean Boot

Another alternative is to run your Dell laptop in safe mode and clean boot. To do this, simply disconnect all the attached devices like wireless printers, routers, and USB keys and turn off your laptop. Turn it on again and then press and hold the F8 key. Make sure you do it quickly before the Windows logo comes up. Now select ‘Safe mode with networking’ and press enter. After that, open System Configuration Utility by going to the start menu and typing ‘msconfig’ in RUN, and then click OK. In the System Configuration Utility click General then selective startup. Now uncheck the load startup items box ad select services and then check the hide all Microsoft services box and disable all. To apply these changes, click ‘Apply’ and then OK.  Now restart your laptop.

Method 3 - Change to SATA Drive

Sometimes error 0146 may pop up due to hard drive configuration changes. If this is the reason for error occurrence, then simply go to Dell Laptop BIOS. Check whether the hard drive configuration has been changed to AHCI SATA from SATA Drive. If it has changed, then it is advisable to change it back to SATA Drive. When you are done back up all your data, and then format your hard drive. It is important to create a backup because formatting will make you lose all your data. Once you format the hard drive, reinstall Windows from scratch.

Method 4 - Run a Registry Scan

If the error 0146 results due to program corruption then there is a possibility that the underlying reason might be registry damage. Therefore it is advisable to run a registry scan and repair it. To do so, download Restoro. This is a cutting-edge and user-friendly PC Fixer integrated with a registry cleaner. Run it to scan for registry issues. It removes all obsolete files corrupting and damaging the registry, repairs important and damaged system files and cleans the registry in the shortest time. Click here to download Restoro and resolve error 0146.

As you know, the Taskbar is one of the integral parts of the Windows desktop and it has been there since the release of Windows 1.0 and up until now with Windows 10. Since then, Microsoft has been modifying the Taskbar with a new design which makes it a home for new features such as Windows Search, Task View, and many more. However, there are times when you may that the Taskbar has disappeared or has stopped responding. If you experience either one of these scenarios, read on as this post will walk you through what you can do to resolve the problem. Here are some suggestions you can check out to resolve the issue with the Taskbar in Windows 10 but before you proceed, make sure that you create a System Restore point first. To do that, follow these steps:

• In the Start search, type in “create a restore point” and click the entry “System Properties”.
• Next, select the main system drive under Protection Settings and click on the Configure button.
• After that, select the “Turn on system protection” option and then click on the Apply and OK buttons to save the changes made.

Once you’ve created a System Restore point, refer to the troubleshooting steps below to fix the Taskbar in Windows 10.

Option 1 – Try to restart the Explorer process

This may sound really basic but it actually is a proven method to fix the Taskbar issue. So if anything gets stuck on the system tray or the Taskbar, you can always fix it by restarting the explorer.exe. How? Refer to these steps:

• First, right-click on the Taskbar and select the Task Manager.
• After opening the Task Manager, go to the Processes tab and look for the process named “Windows Explorer”.
• Then right-click on that process and select the option to Restart. Afterward, you should now be seeing the Taskbar as this will reload the whole Windows Shell.

Option 2 – Unhide the Taskbar using the Settings app

It is possible that the Taskbar could be hidden so you can try to unhide it using the Settings app.

• Tap the Win + I keys to open Settings.
• After that, go to Personalization > Taskbar.
• From the main section, make sure that the “Automatically hide the task in desktop mode” is toggled to the off position. However, if it’s already off then proceed to the next options below.

Option 3 – Make sure that you are not in Tablet Mode

Since Windows 10 is designed to work on both desktop and mobile devices, it could be that your computer has slipped into Tablet Mode which explains why you’re not seeing the Taskbar. To check if your computer is really in Tablet Mode, follow these steps:

• Go to the Start menu and select Settings.
• Next, select the System setting and from the left pane select the Tablet Mode.
• From there, make sure that the buttons next to the options given below are set to the off position:
  • Hide app icons on the taskbar in tablet mode
  • Automatically hide the taskbar in tablet mode

Option 4 – Try to check the Projection Settings

You might also want to check the Projection settings as it could be the reason why Taskbar has disappeared.

• Tap the Win + P keys to open the Windows Projection settings.
• Next, make sure that you select the “PC screen only” option and then check if your Taskbar has now appeared or not.

If your internet suddenly stops working on your Windows 10 computer and you get an error message saying, “Windows is still setting up the class configuration for this device (Code 56)”, then read on as this post will show you what you can do to resolve it. This kind of issue has something to do with the Network Adapter and you can see this error message in the Properties menu of the corresponding Network Adapter under the Device Manager. This kind of issue could be caused by many things. For one, it could be caused by your VPN connection if you are using one or it could also be due to an outdated driver. Whatever the cause may be, here are some suggestions you have to check out to fix the error.

Option 1 – Check your VPN

When you install a virtual machine or VPN software on your computer, a new setup will be added in the Network Connection settings and helps your computer in using that adapter setting each time the VPN is turned on. Assuming that you are using an Ethernet connection but your system is trying to use another adapter or settings, that’s when issues occur and one of them is the “Windows is still setting up the class configuration for this device” error. To fix it, you can try to disable your VPN temporarily and see if the error is resolved or not and if turns out that your VPN is the culprit, you have to uninstall it and install a new one or its latest version. To uninstall it, follow the steps below.

• Tap the Win + R keys to open the Run dialog box
• Then type “appwiz.cpl” in the field and hit Enter to open the Programs and Features in Control Panel.
• From there, look for the VPN service you are using, select it and then click on Uninstall to remove it.
• After that, restart your computer and try to install the latest version of the program again. It should work now. If not, proceed to the next available option below.

Option 2 – Try to update or rollback or uninstall the Network Adapter drivers

You might also want to update, roll back or disable your Network drivers to fix the “This operation failed as no adapter is in the state permissible for this operation” error.

• Tap the Win + R keys to launch the Run window and then type in the “devmgmt.msc” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
• Then right-click on each one of the Network drivers and depending on your preference, you can either select “Update driver”, “Disable device” or “Uninstall device”.
• After that, restart your PC and see if it helped in fixing the netio.sys Blue Screen error.

Option 3 – Try to run the Network Adapter troubleshooter

To run the Network Troubleshooter, refer to these steps:

• Open the Search bar on your computer and type in “troubleshoot” to open the Troubleshoot settings.
• Next, scroll down and select the “Network Adapter” option from the right pane.
• Then click on the Run Troubleshooter” button.
• After that, your computer will check for any possible errors and will pinpoint the root cause of the problem if possible.
• Restart your computer.

Option 4 – Try to reset the Network

You might perform a Network Reset to resolve the problem if none of the three given options above worked. This will reset the entire network configuration including your IP address. To perform Network Reset, follow these steps:

• Tap the Win + I keys to open Settings.
• From there, go to the Network and Internet section.
• Next, scroll down and look for “Network Reset” under the status pane.
• After that, click on Network Reset and then on Reset now to start resetting the network configuration. Once done, check if it is able to fix the error or not.

If you aren’t able to pull up any website and instead got the ERR QUIC PROTOCOL ERROR error message in Google Chrome then read on as this post will help you resolve the problem. When you encounter such an error in Chrome, you will see the following error message:

“This site can’t be reached, The webpage at [website URL] might be temporarily down or it may have moved permanently to a new web address, ERR_QUIC_PROTOCOL_ERROR”

This kind of error message pops up when the URL is down. However, if you are certain that the site is not down and you’re still seeing this error message, then troubleshoot further using the suggestions given below.

Option 1 – Try to disable the QUIC Protocol

QUIC is an experimental transport layer network protocol that is present in Google Chrome in order to establish a connection between two endpoints over UDP. So if there is any problem on the development side, you will most likely encounter ERR_QUIC_PROTOCOL_ERROR on your Google Chrome browser when you try to open any website. Thus, you have to disable the QUIC protocol in order to resolve the error. How? Simply follow the steps below.

• Open your Google Chrome browser.
• Now type in “chrome://flags/” in the address bar and hit Enter.
• After that, look for the Experimental QUIC protocol which should be set by default.
• Then expand the drop-down menu and select Disable.
• Restart Google Chrome and see if the error is fixed or not.

Option 2 – Disable VPN

As mentioned, if you are using VPN, this could be the reason why you’re getting the Windows Update error 0x800F0922 so the most obvious thing to do is for you to turn off the VPN and try to run the Windows Update once more. And if you use a VPN software that works using their software, you can just completely exit or log-off from its account. On the other hand, if you are using a built-in Windows 10 VPN, you can simply turn it off or delete all the settings you have created there. Although it’s understandable that you might have to use a VPN connection to connect to the work network, you really have to disable it at least until the Windows Update is no longer stuck in the error 0x800F0922. It would be best if you do this when you are not working.

Option 3 – Disable the Proxy server

You can also try to disable the Proxy server to fix the ERR_QUIC_PROTOCOL_ERROR in Chrome. Refer to these steps to do so:

• 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.

Hello everyone, I hope you are all doing well. Today we will be changing the Windows Lock Screen background. Changing the lock screen background is a very easy task and it can be done in a very short time. So let's jump right into it. The first thing you need to do is to press the Windows start button on the bottom left and then press settings. Once the settings screen appears, choose and click on Personalization. Inside personalization, click on the Lock Screen tab. On the right screen, under the picture, you will find Windows spotlight, click on it to bring a drop-down menu up. Your choice is presented as a single picture for background or slideshow, a series of pictures that are going to be looped in a given time interval. If you would like just a single picture for your background, choose that and click on it. Once you are in choose picture dialog, click on the browse button and navigate to the picture on your storage which you would like to have as a background. If however, you fancy slideshow as your lock screen background, click on the background drop-down menu and choose the slideshow. Next, click on add a folder and navigate to a folder where you have pictures that you would like to have as a slideshow for your Windows lock screen.

Program and features are Control panel section where once accessed contains all programs installed on the operating system. From these windows, any logged-in user can modify applications, uninstall them, etc. If for whatever reason you want to limit this access to users and remove this group from the control panel please do keep reading as we show you how you can achieve this desired result using two methods: via policy editor or registry editor. Feel free to use any provided method as both works (except on Windows 10 Home edition) and achieve the same thing, it all comes down to preferred preference on how you wish to do things.

Local group policy editor method

This method is more straightforward and easier perhaps than its counterpart but it has one significant drawback, it will not work on Windows 10 Home edition which does not have in itself a policy editor included. If you are using Windows 10 Home edition then feel free to skip this method and do it via registry editor. That being said let's start:

• Press ⊞ WINDOWS + R to open the run dialog
• Inside run dialog type in gpedit.msc followed by ENTER to open Group policy editor
• Go to User Configuration\ Administrative Templates\ Control Panel\ Programs\
• Double-click on the setting named Hide Programs and Features page
• Change the toggle option from Not Configured to Enabled
• Click on the Apply button and then the Ok button to save the changes
• at this point, everything is supposed to be applied and your changes should take effect immediately. However, it has come to our attention that sometimes this is not the case. If you are one of these users which for whatever reason have not experienced applying to set momentarily do not despair and follow this quick guide on how to refresh settings and apply them right away.
• Press ⊞ WINDOWS + X to open the hidden menu
• Click on command prompt (admin)
• In command prompt type in gpupdate /force and press ENTER in order to force update and set setting right away

Registry editor method

The registry editor method is a more complex one but it will be your only way of doing it if as mentioned you are running Windows 10 Home edition. As always it is highly recommended to make a backup of the Windows registry before tempering with it.

• Press ⊞ WINDOWS + R to open the run dialog
• Inside run dialog type in regedit and press ENTER to open the registry editor
• If you would like to make a backup of the Windows registry go to File > Export and save the backup on a secure location naming it as you wish
• Locate the following key inside the registry editor HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Programs
• Right-click on the right pane of the Programs key and choose the New > DWORD (32-bit) Value option
• Name the value as NoProgramsAndFeatures
• Double-click on the NoProgramsAndFeatures value to open it
• Change the value data to 1
• Save the changes
• Reboot the computer in order for changes to take effect.

note: you can always change values back in order to show again panel by changing the value to 0 in registry editor or choosing Not Configured or Disabled in the local group policy editor

As of the time of writing this article you no longer need or are required to have a password if you plan to log in to your Microsoft account. Microsoft explored various options for account security and came to the conclusion that passwords are obsolete. Microsoft is letting you access your account through the Microsoft Authenticator app, Windows Hello, a security key, SMS verification, or email verification code. All of these methods are way better in terms of security than passwords.

How to turn these features on?

To get rid of your Microsoft password, the process is simple. You simply need to go to your Microsoft account, click “advanced security options,” then “enable passwordless accounts” under the Additional security section.