Fix Err_Connection_Closed in Windows

If VirtualBox suddenly displays a black screen without any text or mouse cursor when you are trying to boot a guest operating system, then read on as this post will guide you in fixing such an issue. This black screen occurs when Windows 10 failed to provide a specific setting that VirtualBox requires. Consequently, you will not be able to install or use any guest operating system in VirtualBox even if your PC has virtualization support, the best thing you can do now is to fix this black screen issue. There are two ways you can fix this black screen in VirtualBox, you can either try to disable Hyber-V or disable 3D Acceleration. For more details, refer to each one of the given options below.

Option 1 – Try to disable Hyper-V

Hyper-V is a built-in virtualization tool available in Windows that helps users in creating a virtual machine as well as install a guest operating system without using any third-party tool like VMware, VirtualBox, and many more. However, the problem with this virtualization tool is that some systems cannot run it and VirtualBox simultaneously which is most likely why the screen abruptly turns into black. Thus, you have to disable Hyper-V to resolve the problem. How? Refer to these steps:

• In the Start Search, type “Turn Windows features on or off” and then click on it from the results.
• Once you’ve opened the Windows Features window, remove the checkmark from the Hyper-V box.
• Click the OK button and then restart your computer.
• Now try to use VirtualBox again and see if the problem is fixed.

Option 2 – Try to disable 3D Acceleration

The guest operating system will use the host computer’s GPU to render 3D graphics if you enable the 3D Acceleration for the virtual machine. To simply put it, it will enhance the graphics of the virtual machine and will let you use 3D graphics. Although it may seem nice, it can actually cause the black screen to appear as well so you might have to disable it to isolate the problem. In fact, a lot of operating systems have failed to use the 3D Acceleration for the guest operating system because of this black screen issue. To disable it, follow these steps:

• Open VirtualBox on your computer and select the virtual machine.
• Next, click on the Settings button and go to the Display section.
• After that, look for a checkbox named “Enable 3D Acceleration” located on your right-hand side and then uncheck it.
• Save the changes you’ve made and reboot your PC and see if you can now run the virtual machine without any problem.

In case you don’t know, there is a feature in Windows 10 computers that allows them to function a lot better. This feature is called Full-Screen optimization and it is enabled by default for several applications such as games and video players. If enabled, the Full-Screen optimization feature enhances the video playback and gaming by simply putting the CPU and GPU process as a priority. However, there are times when it can also result to a drop in the frame rate or FPS while in full-screen mode. And of course, the obvious solution to this dilemma is by disabling the Full-Screen optimization feature which is why Microsoft took action and removed this feature themselves in the recent Windows 10 Update releases. However, there is another way for you to enable it back or disable it yourself if you haven’t installed the recent updates yet and there are plenty of ways you can do both. All you have to do is follow the options given below carefully.

Option 1 – Try using Windows 10 Settings

If you haven’t installed the recent updates yet and all you have are the earlier releases, then this method would suit you.

• Open the Windows 10 Settings app.
• Next, navigate to System > Display > Graphics Settings or Advanced graphics settings.
• From there, uncheck the “Enable Fullscreen optimization” option if you want to disable the feature, else just keep it checked.

Option 2 – Try using the Registry Editor

• Tap the Win + R keys to open the Run dialog box and then type “Regedit” in the field and hit Enter to open the Registry Editor.
• Afterward, if a User Account Control or UAC prompt appears, click on Yes.
• Once the Registry Editor is pulled up, navigate to this registry key: HKEY_CURRENT_USERSystemGameConfigStore
• Next, right-click on Explorer and select New > DWORD (32-bit) Value and then name it to “GameDVR_DSEBehavior and tap Enter to save it.
• Now double click on the newly created GameDVR_DSEBehavior DWORD and set its value to “2” if you want to disable it, or “0” if you want to enable it.
• Once you entered the value, close the Registry Editor and restart your computer to successfully apply the changes made.

Option 3 – Try running the application in Compatibility Mode

If the first two options didn’t work, the next thing you can do is to run the application in a Compatibility Mode. Follow the steps below to do so:

• Go to the location of the application or game on which you need to disable or enable the Full-Screen optimization feature.
• After that, right-click on it and select Properties.
• Next, switch to the Compatibility tab where you can see the “Disable fullscreen optimization” option to disable the feature and vice versa.
• Now click on the Apply and OK buttons to apply the changes made in the application’s settings.

As you know, the functioning of the Windows Sandbox feature is supported by various components in the background of the Windows operating system. And the only way for you to enable the Windows Sandbox feature in your computer is through the Turn Windows features on or off utility. This feature will work directly on the basis of Virtualization which is also supported by Hyper-V. However, there are some reports claiming that some computers have the Windows 10 Sandbox item greyed out in the Turn Windows features on or off utility. Thus, in this post, you will be guided on what you can do to resolve such a problem in your Windows 10 computer. In this kind of problem, you should know that this has something to do with the Second Level Address Translation which is one of the important pillars of how the Windows 10 Sandbox feature functions. Thus, if the Second Level Address Translation or SLAT feature in Windows Sandbox is not supported by the CPU of your computer, there is no way for you to use Windows Sandbox on your computer. On the other hand, if SLAT is supported, then there is definitely something you can do to resolve the greyed-out Sandbox item in Windows 10.

To get started, follow the steps provided below.

Step 1: First, you have to boot into the BIOS of your PC. Step 2: After that, make sure that the following options are set to their respective configurations:

• Hyper-V – Enabled
• VM Monitor Mode – Yes
• Virtualization – Enabled
• Second Level Address Translation (VT-d or RVI) – Enabled
• Data Execution Prevention – Enabled

Step 3: Once you’re done, save the configuration and then restart your Windows 10 computer as usual. Step 4: Once your computer has restarted, you should see the same option in the Turn Windows features on or off utility and it should no longer be greyed out. Then you can now enable the feature and follow the onscreen instructions need to use the feature as best as you can.

Microsoft has presented its next version of their flagship product, Windows 11, and feelings are divided among users. Some users like it very much and eager to upgrade, some do not like the graphic overhaul it went through, but overall I think Microsoft has done a good job with it. Here in this article, we will discuss some of the new features which Windows brings to the table, well at least ones that were showed, I am sure there are plenty more which we will see once OS has been released.

New Start menu

One of the first things that everyone saw when Microsoft has unveiled Windows 11 is its Start menu. Funny enough this is what has caused most of the divide among users, some find it interesting, and some do not like it. Truth is, it is different, and it is centered in the middle instead of the lower left part of the screen. It has been confirmed however that the Start menu can be moved to any part of the screen so if you want, you could place it on the lower left as it has always been. Live tiles do not longer exist in the Start menu, instead, we have styled simple icons.

Windows 11 Snap controls are great

If you have used the cascade option in previous Windows versions then it is most likely that you will like the new Snap controls. You can quickly snap windows side by side, or arrange them in sections on your desktop just by hovering over maximize button on the title bar.

Windows 11 File Explorer

File explorer has gone through some visual and design changes, the ribbon on top has been completely removed and replaced with a header-like feature with a slick and clean design. The header contains a nice organized and designed single row of icons like cut, paste, copy, rename, delete, and new folder icons.

Settings app ovberhaul

The settings app also has gone through visual and design changes. It has a new design that is very visually appealing and navigation has been simplified and more organized. Finding the right and desired setting is much faster and clearer now.

Widget tab makes comeback in Windows 11

Yes, widgets are back but not like you remember them. Instead of being all-time present at your desktop like once they used to be, now there is a button on the taskbar which brings the widget bar up that contains desired widgets. This way they are easily accessible and do not clutter desktops. So far we have weather, news, calendar, and stocks widget but we will see how development on these goes. I expect to have community-made widgets like in old days for all of our needs.

XBOX app

The new Xbox app is now integrated into Windows 11, offering quick access to Xbox Game Pass games, the social parts of the Xbox network, and the Xbox store.

Security and TPM 2.0 in Windows 11

As widely known by now Windows 11 will require you to have a TPM 2.0 module capable CPU in order to install it. This system requirement has caused a lot of controversies but essentially it seems that MS's goal is to protect your personal data by using this module. The upside of course is that your data will be protected much more than in previous Windows versions, the downside, of course, will be that you will need newer hardware to run OS on it. and that is essentially it, keep on tuned on more Windows 11 information and overall articles tied to PC and technology here at errortools.com

Microsoft office has two major packages, an online one, and an offline version. The online version of the course is Office 365 that requires a monthly subscription and it is always regularly updated and maintained. Another version is more of a typical old school application, install it and use it, no constant internet connection is required and no monthly subscription is required, buy once and use it. The last version of buying it once and use it was Office 2019 and after two years we are going to receive a new version soon. Microsoft has set its release date for October 5^th of this year and as always it will feature the current latest version of office applications and one-time purchase. The new office will support dark mode and other improvements tied to the new Windows 11 and some specific features tied to Office itself.

JavaScript Void 0 Error - What is it?

JavaScript is a computer programming language used to make a website work smoothly with the internet. It helps to display visual effects, animations, and other web page functions. You may come across the JavaScript Void (0) error message when there is a problem in loading JavaScript from a web page or the internet browser.

Error Causes

JavaScript Void (0) error is triggered by multiple reasons such as:

• It can be due to a simple random Windows application glitch.
• You are visiting an unsafe website that contains malware
• JavaScript’s web browser implementation  is broken due to poor program installation
• Active X controls, Java applets, and active scripting, the key components of JavaScript are disabled
• Registry issues like invalid or misconfigured registry keys

Further Information and Manual Repair

For JavaScript Void (0) error-free web surfing, it is advisable to repair the issue without any delays. Let’s take a look at different methods to resolve this error on your system.

Cause: Simple Random Glitch

Solution: If the cause for the JavaScript Void 0 error is a simple glitch, then it is advisable to restart your system and then run the program again.

Cause: JavaScript’s web browser implementation is broken

Solution: If you experience the JavaScript Void 0 error message after the installation of the new browser on your system, then poor installation of the program or program conflict is most likely to be the deep-rooted cause of this error code. To resolve it, uninstall the program and undo the recent changes.

Cause: Active X controls, Java applets, and active scripting, the key components of JavaScript are disabled

Solution: You should know that components including Active X controls, Java applets, and active scripting are all essential to JavaScript in order to make your browsers run properly. If these are disabled, you may come across the JavaScript Void (0). To fix it open your browser and select the Tools tab. Then click the options button and select content. Here check the ‘enable JavaScript’ check box and click Ok to enable these components.

Cause:  Registry Issues

Solution: If after performing all the solutions discussed above, you still come across JavaScript Void (0) error code, then you should know that the problem is bigger than what you expected. It triggers registry issues. Either the cause of the error is misconfigured or invalid registry keys. To reconfigure the registry keys setting may be a challenging task and complex if you are not a computer programmer.

Error Code 12 - What is it?

Error code 12 is a typical Device Manager error code. It usually pops on the computer screen when the computer experiences device driver problems or system resource conflicts.

Error code 12 is mostly displayed on the computer screen in the following format:

‘This device cannot find enough free resources that it can use. If you want to use this device, you will need to disable one of the other devices on this system.’

Solution

Error Causes

The error code 12 occurs when 2 devices installed on your PC are accidentally assigned the same I/O (input/output) ports or the same direct memory access channel.

This assignment is known to be made either by BIOS (Basic Input/output system) or by the operating system. It can sometimes be assigned by a combination of the two. Also, code 12 can also appear on your monitor screen if the BIOS didn’t allocate enough resources to the device.

Although this error code is not fatal, it is nonetheless advisable to fix it immediately to avoid inconvenience and hassle. This error is most likely to lower and hamper the performance of your system.

Further Information and Manual Repair

Here are some of the easiest and most effective do-it-yourself methods to resolve error code 12 on your PC. To perform these fixes, you don’t have to be technically sound or a computer programmer for that matter. Simply follow the steps to fix the problem right away.

Method 1 - Use the Troubleshooting Wizard to identify the Conflict

To repair error code 12, simply go to the start menu and type Device Manager in the search box. Now go to the Device Properties dialog box. After that click on the ‘General Tab’ and now access Troubleshoot to start the Troubleshooting Wizard.

The Wizard will ask you some questions and provide you a solution accordingly. Follow the instructions and resolution steps provided by the troubleshooting wizard to repair error code 12 on your PC.

Method 2 - Disable the Device to Resolve

By disabling the problematic device in the Device Manager, Windows will ignore that piece of hardware. Once disabled, Windows will then no longer assign system resources to that device and no driver/software will be able to use that device.

To disable, go to the Device Properties in the Device Manager and then click the Driver tab. Click disable located at the bottom of the window. Then you will be prompted with a message stating ‘Disabling this device will cause it to stop functioning. Do you wish to disable it?’ Click yes to continue and then click OK to save changes.

Method 3 - Restore Your PC to its Previous State

Another method to resolve error code 12 is to restore your PC to its previous state when it was working properly.

For this, it is important to backup all your data first to avoid data loss issues that are likely to occur during this process. Creating backups manually can be a time-consuming and tedious task. To save time and quicken the process, it is best to install a program like DriverFIX.

DriverFIX is a user-friendly and intuitive device driver management software that helps backup all your data automatically and efficiently, while simultaneously restores your PC back to its previous state before you encountered problems.

Click here to download DriverFIX on your system to resolve error code 12

Cyclic Redundancy Check Error - What is it?

To begin with, Cyclic Redundancy Check is basically an error checking technique. This technique is used for data verification. It detects accidental changes in the data. It is used by computers to specifically check the data stored in the hard drive or optical disks (DVD’s and CD’s). The Cyclic Redundancy Check error occurs when the data being verified on the hard drive or optical disks is corrupt. Symptoms for this error code include program lock-ups, slow PC performance, inability to run and execute the desired program, system freeze and shutdown and startup issues.

Error Causes

The Cyclic Redundancy Check error code occurs due to the following reasons:

• Cluttered hard disk
• Registry corruption
• Misconfigured files
• Unsuccessful program installation

All these causes points towards registry issues and poor PC maintenance. The registry is the main database of the computer. This part of the PC saves practically every activity you perform on it including activities like application installation and deletion and web browsing to name a few. With time and frequent PC usage, the files generated from every activity you execute on your system begin to load the registry. These include even the unnecessary files like junk files, internet files and files of applications that you’ve uninstalled. All these files overload the registry and acquire a lot of hard disk space. And when you don’t remove these files on your system, eventually it leads to file misconfiguration, cluttered disk, and registry corruption. New program versions that you want to install and run on your system also don’t function because the files of the old program version still saved in the registry.

Further Information and Manual Repair

As the Cyclic Redundancy Check Error causes data corruption on the hard disk, it is advisable to fix this error right away. The reason is that it can have serious consequences. It can lead to data loss, fatal crashes, and system failures. When it comes to resolving Cyclic Redundancy Check Error, there are two ways to fix it:

Run the CHKDSK application.

This is a built-in feature in your Windows system. It checks for hard disk damage and attempts to resolve it.

If you suddenly encounter the DRIVER_CORRUPTED_EXPOOL Blue Screen of Death error when using your computer, then there might be some issues with the device drivers on your Windows 10 computer. This kind of BSOD error can occur at any point while you are using your PC. Its main cause is due to some error in the System Pool where a driver becomes incompatible with the operating system or when the configuration files get corrupted for some reason. If you are one of the users who are currently inconvenienced by the DRIVER_CORRUPTED_EXPOOL error, worry not, as this post will give you some potential fixes that might help resolve the problem.

Option 1 – Perform a System Restore

Performing System Restore might help you in fixing the DRIVER_CORRUPTED_EXPOOL Blue Screen error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Option 2 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like DRIVER_CORRUPTED_EXPOOL error. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 3 – Update the Device drivers

The device driver installed in your computer might be incompatible with your operating system which is the reason why the DRIVER_CORRUPTED_EXPOOL Blue Screen error occurs. To fix that, you have to update your device drivers.

• Tap the Win + R keys on your keyboard to open the Run dialog box.
• After that, type “msc” in the field and hit Enter or click OK to open the Device Manager.
• After opening the Device Manager, update all the outdated Device drivers on your computer.
• Next, right-click on all the driver entries that are appropriately labeled, and then click the Update driver option.
• Now restart your PC and check if the BSOD error is fixed or not.

Option 4 – Uninstall any faulty device drivers

• Tap the Win + R keys on your keyboard to open the Run dialog box.
• After that, type “msc” in the field and hit Enter or click OK to open the Device Manager.
• From there, look for any device driver which has a yellow exclamation mark which indicates that something is wrong with them.
• And then right-click on each one of them and click on Uninstall.
• Once you’re done uninstalling the faulty drivers, restart your computer and allow your computer to reinstall the drivers you just uninstalled.

Option 5 – Try running 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 that might be causing the Machine Check Exception BSOD error. 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

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 6 – Try updating the BIOS

As you know, the BIOS is a sensitive part of a computer. Even though it is a software component, the functioning of the hardware depends on it largely. Thus, you must be careful when modifying something in the BIOS. So if you don’t know much about it, it’s best if you skip on this option and try the other ones instead. However, if you are well-versed in navigating the BIOS, then follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “msinfo32” in the field and press Enter to open System Information.
• From there, you should find a search field on the bottom where you have to search for the BIOS version and then press Enter.
• After that, you should see the developer and version of the BIOS installed on your PC.
• Go to your manufacturer’s website and then download the latest version of BIOS on your computer.
• If you are using a laptop, make sure that you keep it plugged in until you have updated the BIOS.
• Now double click on the downloaded file and install the new BIOS version in your computer.
• Now restart your computer to apply the changes made.

Option 7 – Try resetting Windows 10

To fix this BSOD error, you can try resetting Windows 10. Doing so won’t get rid of any file in your system – instead of erasing all your media files and documents, this reset option resets all the system settings and files.

If you have a dual monitor setup on your Windows 10 computer and you mostly use the second screen when you are presenting something, this makes the Taskbar completely unnecessary and is not really required. So if you are using your computer generally and do not want the taskbar on your second screen, read on as this post will guide you in disabling Taskbar on your second display. The good thing is, Windows comes with a built-in feature to disable Taskbar on your second screen or projector connected to your computer. In this post, you will be guided on how you can hide or disable the Taskbar from the second monitor in Windows 10. This post is coming in handy especially if you are using projectors or multiple displays. Refer to the steps given below to disable Taskbar on the second display in Windows 10. Step 1: Go to Settings and click on Taskbar from the left menu. Step 2: After that, scroll down to lo look for Multiple Displays. Step 3: Next, turn off the toggle labeled, “Show taskbar on all displays”. Note: After completing the steps given above, it will disable the Taskbar on all the secondary displays. Bear in mind that these settings will work only if you are running a second screen in Extended mode. Contrariwise, if you are in the Duplicate mode, this setting will not work but you can always set your Taskbar to Autohide so that it won’t be displayed.

On the other hand, if you are facing some issues in finding which screen is primary and which one is secondary, refer to these steps:

Step 1: Go to Settings and select System. Step 2: Next, from the left menu open Display. Step 3: From there, select the desired display and make it the primary one as required by your setup.