3 Methods To Fix Qtcore4.dll Error

Thorconnwndclass error is an Outlook error that has recently reared its head. Known to create several problems in the proper functioning of the Outlook application, this error is essentially a constituent of the Norton Antivirus Crash Guard Symantec component. That’s why those using the Norton Antivirus program are most likely to encounter this error.

Solution

Error Causes

When the Thorconnwndclass error occurs, the Outlook closes unexpectedly, users encounter problems while sending or receiving emails and, performance of Outlook is degraded and this happens because issues arise while accessing the PST file. Because of this damaged PST file, stored data is unavailable for access. Other factors that trigger the Thorconnwndclass error are listed below.

• Corrupt or damaged Outlook Add-ins
• Corrupt or damaged Outlook bar
• Unfinished Outlook installation
• Faulty settings
• Thorconnwndclass Norton is being used with Outlook

Regardless of the underlying factors that lead up to the occurrence of this error, it's of paramount importance that workarounds are implemented to ensure desired performance of Outlook in the long run.

Further Information and Manual Repair

While there are several ways to rectify this error, some of the most common ones are listed below as follows.

• The most effective solution is the PST file repair tools available online. These tools use a complex algorithm and thoroughly scan the PST file and repair it as needed. This resolves the Thorconnwndclass error that one encounters in Outlook. Usually such software have an easy to use interface and can easily be used, without the need for the user to have a strong technical background. Another advantage of using these software available online is that they not only repair the file, but they often play a pivotal role in retrieving inaccessible or lost data.

Some other tips for manually resolving this problem are listed below as follows.

• First and foremost, disable your Norton Antivirus program if it’s installed on your system. Now, open the Outlook application in Safe Mode. Since this problem may also be triggered by damaged or corrupt Outlook add-ins, it is strongly advised that you disable or uninstall them. Now, you will come across some .dat files. Rename them by changing the existing .dat files to new .dat.
• Another useful approach is to employ the Inbox Repair tool offered by Outlook.
• Finally, one can also use the scanpst.exe file to fix any problem or error that resides within the  Outlook application.

Error 2 - What is it?

Error 2 is a typical Battle.net error code. Battle.net is a desktop app that allows you to access all Blizzard games. It enables Blizzard gamers around the world to play multiplayer matches together, online. Error 2 occurs when you are unable to connect to the login server. This error code is displayed in the following format:

Battle.net Error #2: Unable to connect. Please try again later. If the problem persists, please contact technical support.

Solution

Error Causes

Error 2 may be triggered due to several reasons. These include:

• Program conflict
• Security software conflict
• Bad DNS cache entry
• Issues with network devices
• Viruses and malware
• Registry corruption

Error 2 is not a fatal error like the blue screen of death error codes. However, this error may hamper your ability to play Blizzard multi-player games. To overcome this problem it is advisable to fix error 2 immediately.

Further Information and Manual Repair

To resolve this error you don’t need to spend hundreds of dollars to hire a professional and get it fixed. Here are some of the easy do-it-yourself methods to resolve this error on your PC. These methods require no technical expertise or knowledge. Let’s get started:

Method 1

Error 2 may sometimes pop up on the screen due to program conflict. This happens when you have Blizzard games and other programs running on your PC at the same time. In such a situation, it is advisable to close background applications to resolve conflicts between Blizzard games and other programs running in the background.

Method 2

Sometimes antivirus programs and firewalls can also hinder and interfere with the game’s connection to our servers. In this event, the best way to fix the error is to temporarily uninstall your security software.

Method 3

If error 2 is triggered by the issues with network devices then simply power cycle network devices to re-stabilize the connection. Power cycling router and modem allow you to reset and reestablish a connection to your ISP. To do this, shut down the computer then power down/unplug the router and the modem. Allow the modem to sit for 60 seconds, unplugged. Then turn it on and allow it to boot up till the front panel connection lights show a steady connection. Now turn on the router and do the same as you did with the modem. After that start the computer and allow it to completely boot up. Now try logging on to the Blizzard gaming server. This will hopefully resolve the issue.

Method 4

Viruses and malware infections can also trigger error 2. In such a situation install an antivirus and remove all malicious programs infecting your PC.

Method 5

If the cause of the error is related to registry corruption, then it is advisable to download Restoro. This is a user-friendly PC Fixer with a registry cleaner. The registry cleaner removes all unnecessary and obsolete files corrupting the registry, cleans and repairs the corrupted registry in a few minutes. Click here to download Restoro on your PC to resolve error 2. For further information you may be interested in these similar issues:

What is this particular error?

One common issue when trying to upgrade to Windows 10 from Windows 7 or 8 is incompatible software. Any installed software or app that isn’t compatible with Windows 10 will prevent you from continuing with the set-up. Normally, you’ll get an error message “What needs your attention” and it will ask you to uninstall a list of apps manually. Unfortunately, some users reported that they couldn’t find the app it asks to uninstall. In some cases, users said they’ve already uninstalled the app but it still won’t start the Windows 10 Setup.

Solution

Error Causes

This type of issue normally occurs because of the following:

• Incompatible software/apps
• Corrupted software/apps
• Incomplete uninstallation

Further Information and Manual Repair

Here are some steps you can take whenever you encounter this error.

Note: Before taking any steps, make sure that you’re highly equipped to do so. Some steps might affect the system and even do more damage to your computer. You might also want to consider using an automated tool instead.

Method 1 – Perform a clean boot, then retry upgrading

A clean boot is normally done to start Windows using the least set of drivers and startup programs available. By doing this, it eliminates possible software issues that happen when installing or uninstalling a program in Windows 10.

Before performing a clean boot, make sure to take note of the following:

• You need administrative privileges in order to perform this action.
• When doing this, your computer might lose temporarily functionality. However, it will return after start-up.
• It is highly advisable to not use the System Configuration to change advanced boot options.

Here are the steps to perform a clean boot.

• Step 1 – Go to Start and search for msconfig
• Step 2 – Go to System Configuration
• Step 3 – Under Services tab, click on the “Hide all Microsoft services” checkbox. Then, choose to Disable all
• Step 4 – Go to the System Configuration’s Startup tab. Then, click on “Open Task Manager”
• Step 5 – In the Task Manager dialog box, you will see a Startup tab. Choose items that you want to disable and then click the Disable button
• Step 6 – Close the Task Manager dialog box.
• Step 7 – Go back to the Startup tab of the System Configuration box. Click “Ok” then proceed with restarting.

Method 2 – Manually uninstall programs from the Program Files folders

Instead of using the “add or remove programs” feature in Windows, you might need to manually install the program directly from the C drive. To do this, follow the steps below:

• Step 1 – Go to the C drive, and look for the Program Files folders. For 32-bit users, you can find it at C:\Program Files. If you’re using the 64-bit version of Windows, go to C:\Program Files (x86) folder.
• Step 2 – Find the “uninstall” application file
• Step 3 – Right-click, and run the file as administrator. Wait for the uninstallation to finish. In some software, you need to restart your system before the uninstallation will take effect.

Note: In some cases, you may also need to search for files related to the program. You can use the search bar under Drive C to do this. Delete those files as well.

Method 3 – Create a new user account

Before upgrading to Windows 10, create a new user account. Make sure it has administrative privileges. From there, run the upgrade.

Method 4 – Use third-party uninstaller services

If you still can’t run Windows 10 Setup after the above methods, you might need to rely on a third-party service. Microsoft recommends Revouninstaller that can help you.

Before using this software, reinstall the application or utility that Windows 10 wants you to install. Then, use Revouninstaller to delete the program completely.

Method 5 – Disable third-party antivirus software

Some users who experienced this issue reported that it was solved after disabling or completely uninstalling the anti-virus software installed in their system.

Method 6 – Use a trusted automated tool

If after trying the above methods, the problem still persists, it might be best to use a trusted automated tool to fix the issue.

Error 2046 - What is it?

Error 2046 is an error code related to Adobe Flash Player. It usually occurs while watching movies or videos on the web browser. This error code may interrupt video display and hamper you from watching your favorite movies and videos.

Solution

Error Causes

Narrowing down the reason for the occurrence of this error code is quite difficult virtually because it may trigger due to several reasons such as:

• There might be issues with Adobe Flash Player settings
• Ad-blocking products
• Windows not updated
• Registry issues
• Malware infection
• Flash Player Add on not properly installed

Further Information and Manual Repair

The good news is that the error 2046 is not fatal. It is easy to fix. In fact, it is so easy to repair that you can do it all by yourself even if you are not a computer whiz. You don’t have to hire a professional and spend hundreds of dollars on repairs. Here are some of the many manual solutions that you can try to fix this issue on your computer screen:

Reinstall Adobe Flash Player

Since this error code is largely related to Adobe Flash Player, it is advisable to start by reinstalling the Flash Player. Here is a step-by-step guide to help you work through it.

1. First, click start and then select the control panel.
2. Now click on programs and then uninstall Flash Player from the program list.
3. After that’s done, reboot your computer.
4. Now download Adobe Flash Player from a reliable website and run it.

If it works perfectly, then the issue is resolved. If not, then try other methods given below.

Re-Enable Flash Player Add-on

Adobe Flash Player add-on is basically installed in IE (Internet Explorer) which is loaded each time you load IE. Sometimes the problem with this add-on can also generate error 2046.

1. To resolve this, open Internet Explorer and press Alt-Key.
2. Select tools and then manage add-ons.
3. Now select Adobe Flash Player Active X and then click disable tab.

Once that’s done, restart the web browser and repeat the same steps but this time click enable button. This will hopefully resolve the issue.

Unblock Ad Blocking Products

Sometimes error 2046 may pop up on your screen if you use ad-blocking products like AdBlock Plus. If so, then try uninstalling ad-blocking products installed on your PC to fix the issue.

Install Window Update

Microsoft releases new updates every now and then. These updates are made with the objective of solving bugs and run-time errors like error 2046. Therefore if the error code is related to Windows updates then to resolve it is it advisable to launch the Windows update program and update your operating system. For this, click Start, All Programs, and then click Windows Update. Now click the Check for updates button and download and install the new updates. Once that is complete, restart your PC to bring changes into effect.

Scan for Malware and Look For Registry issues

Whether the issue is related to malware or the registry, it is recommended to download Restoro. This is a next-generation and a multi-functional PC Fixer embedded with a powerful antivirus and a registry cleaner. Run it on your PC and scan for viruses and registry issues and click repair to resolve. It is user-friendly and compatible with all Windows versions. Click here to download Restoro to resolve error 2046.

There are times when you encounter some issues while your Windows 10 computer. One of the errors you can encounter in the update process is the “Something went wrong, error code 0x8007042B”. This kind of error might be caused by several reasons and it could also pop up in lots of cases like upgrading to a new feature update or a new build using the Media Creation tool or Windows Update Assistant. There are times when the Windows Update error code 0x8007042B is followed by another error code like 0x2000d. Whatever the extra error code that follows, the core issue still remains the same. To resolve the problem, here are some options that could help. And while going over these troubleshooting tips, you have to keep clicking the Update button right after you carry out a troubleshooting option.

Option 1 – Try to restart the Background Intelligent Transfer Service

The Background Intelligent Transfer Service or BITS is a part of the Windows Update service and is the one that manages the background download of Windows Update, as well as scans for new updates and so on. And if Windows Update is experiencing some problems, you can try restarting BITS but make sure that you have admin privileges to do so.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter to open Windows Services.
• From the list of Services, look for the Background Intelligent Transfer Service and double-click on it to open Properties.
• After that, you need to set the Startup type to “Automatic (Delayed Start) and click on Apply.
• Now click the Stop button to stop BITS and then click the Start button to restart the service.
• Click OK to save the changes made and then restart your PC.

Option 2 – Try creating Windows 10 ISO media

In this option, you will have to create a Windows 10 bootable media and use it to install the latest Windows 10 version. The most user reported that this option works and the reason why it does have something to do with the Windows Update client since the Windows Updates downloaded from the regular Windows Update client seems to create issues such as the Windows Update error code 0x8007042B. However, issues like this one don’t occur when the very same Windows Updates are downloaded and installed via an ISO file. Take note that when using a Windows ISO file, you will be asked to choose what you want to do with the previous settings and apps. A lot of users opted for the “Not to keep the old Windows settings” option which has resolved the issue. So if you want to keep the previous settings then you must try to update Windows first while keeping the old settings. However, if it doesn’t work, you have to try installing the latest version of Windows without keeping the previous settings.

• Click this link and then click the Download Tool Now button.
• Next, click the “Use the tool to create installation media (USB flash drive, DVD, or ISO file)…” option and follow the next given instructions on the screen.
• Now select the ISO file option in step 5.
• After that, you should now have an ISO file.
• Next, go to the location where you’ve downloaded the ISO file.
• Then right-click on the Windows 10 ISO file and select the Open with option and then select File Explorer.
• Now click on “setup.exe” and follow the next instructions that appear on the screen. When asked, you have to select either the Nothing (clean install) or the Keep personal files only option. Take note that you must not select the “Keep personal files, apps, and Windows settings since it doesn’t really work.

Option 3 – Run the DISM tool

You can run the DISM tool as well to help fix the error code 0x8007042B during Windows Update. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 4 – Perform a System File Checker scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Windows Update Error 0x8007042B to appear. 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.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow and hit Enter.

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.

Option 5 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing Windows Update Error 0x8007042B. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 6 – Contact Microsoft Support for assistance

If you’re at your wits’ end in trying to update your Windows 10 computer, you should consider contacting Microsoft Support for help as they can offer you various options that would make fixing Windows Update Error 0x8007042B a lot easier and faster.

Every time a new drive or any storage device is connected to a Windows 10 computer, the operating system tends to allot a drive letter to it automatically. Not only that, as the OS also maps the location of the drive which helps it point the letter to the exact port location of the drive and serve requests from the user. As a result, it builds up a bit of cache as per the pattern in which the user uses the storage of the computer. This whole process is known as “Auto Mounting” which works for hard disks or optical drive readers that are connected using the SATA ports and even for USB drives that are connected using the USB ports. There are several ways you can enable or disable the Auto-Mount feature in Windows 10. You can do it using the MountVol tool or the Registry Editor or the Diskpart utility. Before you proceed, it is recommended that you create a System Restore point first so that you can always undo the changes you made in case anything goes wrong.

Option 1 – Enable or disable Auto Mounting via MountVol tool

In this option, you will be using the mountvol command in the Command Prompt. Refer to the steps below.

• Tap the Wins key once and type in “command prompt” in the field.
• From the search results, right-click on Command Prompt and select the “Run as administrator” option to run it with admin privileges.
• Next, type the following command and tap Enter to enable the Auto Mount feature:

mountvol /E

• On the other hand, if you want to disable the Auto Mount feature, type the following command instead:

mountvol /N

• After that, type the command below to remove all the previously assigned drive letters:

mountvol /R

• Finally, restart your computer.

Option 2 – Enable or disable Auto Mounting via Registry Editor

• Tap the Win + R keys to open the Run dialog box.
• Then type “Regedit” in the field and tap Enter to open the Registry Editor.
• After that, navigate to this registry key: ComputerHKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesmountmgr
• Next, look for a DWORD named “NoAutoMount”. If you can’t find a DWORD with that name then simply create a new DWORD with the same name and make sure that the base is selected to Hexadecimal.
• Now double click on that DWORD and change its value to 0 if you want to enable it, otherwise, input 1 as its value to disable it.
• Restart your computer.

Option 3 – Enable or disable Auto Mounting via Diskpart utility

• Tap the Wins key once and type in “command prompt” in the field.
• From the search results, right-click on Command Prompt and select the “Run as administrator” option to run it with admin privileges.
• After opening Command Prompt as admin, type the following command and hit Enter to launch the Diskpart utility:

diskpart

• After that, a User Account Control prompt will appear. Just click on the Yes button.
• Next, type the following command and hit Enter:

automount

• Following the command you entered, you will an output that either says, “Automatic mounting of new volumes enabled” or “Automatic mounting of new volumes disabled” which means you can use it to check the status of Auto Mount.
• Now if you want to enable the Auto Mount feature, type the following command and tap Enter:

automount enable

• And if you want to disable the Auto Mount feature, just enter the following command:

automount disable

• To remove all the assigned letter and history of drives that were connected previously, type the following command:

automount scrub

• Finally, restart your computer.

When you run a program in Windows 10, error 0xc000012f may pop up, mentioning that the files and binaries you’re trying to run are corrupted. Error 0xc000012f means Bad Image, denoting that the program’s executable or one of the supporting modules is corrupt. Or there is probably a DLL mismatch. This error usually manifests itself after a windows update or after installation of some application, in order to fix it follow the steps below:

1. Perform SFC scan

   Press ⊞ WINDOWS + X to open the Windows menu From the menu choose command prompt (admin) In command prompt type sfc /scannow and press ENTER Leave the computer for the operation to be completed and Reboot your computer

2. Run DISM

   Press ⊞ WINDOWS + X to open the Windows menu From the menu choose command prompt (admin) in command prompt type: DISM.exe /Online /Cleanup-image /Restorehealth and press ENTER wait for the process to be finished and Reboot your computer

3. Reinstall application

   If this error has been popping up after the application install remove the installed application and install it again. There is the possibility that the application installer has by accident corrupted some files, reinstalling it might fix the issue.

4. Uninstall Windows update

   In some cases, Windows update can introduce this issue, go to Windows updates, into advanced options, and uninstall the latest update to see if this will fix the error.

5. Install Visual C++ Redistributable

   Go to the official Microsoft website and download C++ redistributable package and install it

6. Install new windows update

   If there is a new Windows update install, there is a chance that in the last update something went wrong and it is very likely that it was fixed in the last one.

When you get the “HTTP Error 304 Not modified” error in Google Chrome, Mozilla Firefox, or Microsoft Edge, there can be lots of reasons why you’re getting this error. The HTTP Error code 304 means redirection, technically. It could be that the DNS has some issues or the cache is already reusing the existing information to look for a website or it could also be that your browser might be infected. In this post, we will show you what you can do to fix the “HTTP Error 304 Not modified” error when you are not able to open a website on your browser. Here are the exact details of the error message:

“This status code is returned if the client has already downloaded resources since the last visit and is displayed to notify the client browser that the requested resources is already stored in the browser cache which hasn’t been modified.”

Follow each one of the given fixes below to resolve the issue.

Option 1 – Clear the browsing data on your browsers

The first thing you can try is clearing the browsing data on your browsers.

Microsoft Edge:

• Open Microsoft Edge.
• Then click on the three horizontal dots to open the menu.
• From there, click on Settings. And under Settings, click the “Choose what to clear” button under the Clear browsing data section.
• Next, check all the checkboxes and then click the Clear button to clear the browsing data in the Edge browser.
• Restart Edge.

Google Chrome:

• Open Chrome and then click on the three vertical dots located at the top of the window.
• Then click on Settings.
• After that, click on Advanced. And from the Privacy and Security section, click on the “Clear browsing data” option.
• Now click on the CLEAR DATA button.
• Restart Chrome.

Mozilla Firefox:

• Open Firefox and then click on the three horizontal lines to open the menu.
• From there, click on Options.
• Next, select Privacy & Security.
• After that, click on the Clear Now button under the Cached Web Content section and then click the Clear All Data button under the Site Data section.
• Restart Firefox.

Option 2 – Flush DNS and reset the TCP/IP

There are some websites that don’t resolve since the DNS in your computer still remembers that old IP address. And so you need to flush the DNS as well as reset the TCP/IP on your computer.

• Click the Start button and type in “command prompt” in the field.
• From the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
• After opening Command Prompt, you have to type each one of the commands listed below. Just make sure that after you type each command, you hit Enter
  • ipconfig /release
  • ipconfig /all
  • ipconfig /flushdns
  • ipconfig /renew
  • netsh int ip set dns

After you key in the commands listed above, the DNS cache will be flushed and the TCP/IP will reset.

Option 3 – Try using the Google Public DNS

Changing your DNS to Google Public DNS might also help you in fixing the “HTTP Error 304 Not modified” error. To do so, follow the steps below.

• The first thing you have to do is right-click on the network icon in the Taskbar and select Network and Sharing Center.
• Next, click on the “Change Adapter Settings” option.
• After that, search for the network connection that you are using to connect to the internet. Note that the option might be “Wireless Connection” or “Local Area Connection”.
• Right-click on your network connection and click on Properties.
• Then select the new window to choose the “Internet Protocol 4 (TCP/IPv4)” option.
• After that, click on the Properties button and click the checkbox in the new window for the option “Use the following DNS server addresses”.
• Type in “8.8.8.8” and “8.8.4.4” and click OK and exit.

Option 4 – Run Cleanup Tool and disable Extensions

You might also want to run the Cleanup Tool in Chrome if you are using this browser as well as disable all the extensions as some of them, if not all, might be the reason why you’re getting the “HTTP Error 304 Not modified” error.

What Is 0x80004001 Error Code?

0x80004001 is an error code that Windows users encounter quite commonly.

This error usually occurs when users try to update an old Windows application or attempt to run a certain application. When this error appears on the screen, the system automatically restarts to stop further processing. The error results in a blue screen after the system boots.

This blue screen is known as the Blue Screen of Death.

Error Causes

There are different files in the Windows operating system responsible for its smooth functioning. Sometimes problems like viruses or incorrect register entries corrupt or damage these files. This is when this 0x80004001 error appears.

Simply put, some of the most common causes that trigger 0x80004001 error are listed below as follows.

• Corrupt or damaged EXE, VXD, DLL files of Windows
• Incorrect entry of registry files
• Presence of viruses or malware in the system
• Corrupt or damaged system files
• Unfinished application installation

Irrespective of what causes this error, it is of utmost importance to troubleshoot it as soon as possible.

Further Information and Manual Repair

While there are several ways of troubleshooting this error, the two most useful approaches have been listed below as follows.

• This solution is for advanced users. Start your system and log on to it as the administrator. Click on the Start button. Now select All Programs->Accessories->System Tools. Finally, click on System Restore. In a new window, select the option “Restore My Computer to an Earlier Time”. Now click on Next. A list of restore points will be displayed. Choose the most recent restore point from this list and click “Next”. Now click next on the confirmation Window again. Once the restoration is finished, the computer will restart itself and you will observe that the error no longer appears.
• This solution is for beginner or novice users. Download a 0x80004001 error repair utility available online. Install this program on your computer and use it to scan for the error in your system. When the scan completes, find if any feature allows you to fix errors. If yes, click on it. Now restart your computer again. You will notice that the virus has disappeared. It is a good idea to use error repair utilities because they scan the system, diagnose the error and then perform the repair.

Use any of the methods listed above to get rid of the 0x80004001 error once and for all.