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VirtualBox displays Black screen

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.

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VirtualBox FATAL:No bootable medium found!
If you continuously encountered the “VirtualBox FATAL: No bootable medium found, System halted” error when you try to install Windows 10 in VirtualBox, read on as this post will give you some potential fixes to resolve the problem – you will be guided on how to choose the ISO image to fix this error in VirtualBox. This kind of error is a very common one especially if you have a corrupted ISO file or if you have not selected an ISO file for your virtual machine. Like pointed out, this error pops up when you have a corrupted ISO file or if the ISO file is not attached to the virtual machine. You have to select the ISO file while you create the virtual hard disk, else, you will most likely face this problem, and to fix it, you need to download fresh Windows ISO, create a new IDE Controller, assign Windows ISO to the IDE Controller and then boot your virtual machine. For detailed steps, follow the instructions below but before you start, make sure that you have a valid and uncorrupted Windows ISO. Step 1: First, you need to open the VirtualBox program on your computer and select the virtual machine. Step 2: Next, click on the Settings button or you can also right-click on the virtual machine and select Settings from the context menu. Step 3: Once you’re in the Settings panel, go to the Storage section and from there, create a Controller: IDE. Step 4: To create a Controller: IDE, click the Add new storage controller icon and select the “Add IDE Controller” option. Step 5: After that, click the Add optical drive icon and click on the Choose disk button. You will then see all the attached and non-attached ISO files. However, you have to add the new ISO file that you just downloaded. Step 6: To add the new ISO file, click the Add button and select the ISO file and then select the .iso file from the Non Attached section. Step 7: Now click the Choose button and afterward, make a checkmark in the Live CD/DVD checkbox and then select the IDE Primary Master from the drop-down menu of the Optical Drive. Step 8: Once you’re done, save the changes made and try booting into your virtual machine again.
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Fix DRIVER_VERIFIER_DETECTED_VIOLATION
Driver Verifier is a built-in tool in Windows 10 that monitors device drivers on your computer, if it detects issues with drivers, it will attempt to fix the issue. If you are encountering Blue Screen for a Driver and after running Driver Verifier you get another with message DRIVER_VERIFIER_DETECTED_VIOLATION ten follow this article step by step in order to solve it. There is a chance that you will maybe even have to do this in safe mode, if that is your case, login into safe mode and proceed, otherwise proceed normally.
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Taskbar icons on leftMoving icons in Taskbar

  1. Open Windows settings by using ⊞ WINDOWS + I key combination
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DLL files, also known as Dynamic Link Libraries are external parts of applications that run on Windows as well as other operating systems. Almost all applications are not complete in themselves and store code in different files. In this post, we will be discussing one DLL file called ntdll.dll. It is described as “NT Layer DLL” which means that it contains some Kernel functions that help in the normal functioning of the Windows operating system. It is created by Windows in the System32 folder when the OS gets installed. This file can serve different programs simultaneously by providing them with different Kernel functions which support the programs’ performance. However, if you encounter the ntdll.dll file error on your Windows 10 computer, read on as this post will guide you in fixing the problem.

Option 1 – Try to re-register the ntdll.dll file

You may have to re-register the ntdll.dll file using the regsvr32.exe before you can successfully install the program and fix ntdll.dll file crash error. The Regsvr32 tool is a command-line utility that can be used to register and un-register the OLE controls like DLL and ActiveX (OCX) control in the Windows operating system. Follow the steps below to use it.
  • Open Command Prompt as admin from the WinX menu.
  • Next, type the following commands in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
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Option 2 – Disable problematic Internet Explorer add-ons

There are instances when some add-ons in the Internet Explorer browser can cause the ntdll.dll file crash error. Thus, you need to disable some add-ons in Internet Explorer and then check if it fixes the problem.

Option 3 – Try running the DISM tool

You might want to repair potentially corrupted files in your system as having them could also trigger the ntdll.dll file crash error. To repair these corrupted system files, you can run the DISM commands:
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Option 4 – Try to run the Program Compatibility Troubleshooter

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Option 5 – Try to replace the DLL file with a trusted source

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  • After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
    • x86: This PC > C:WindowsSystem32
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  • Now type the “regsvr32 ntdll.dll” command and hit Enter.
  • Restart your PC and check if the error is now fixed.

Option 6 – Try scanning your computer using Windows Defender

The ntdll.dll file crash error might also be infected with malware or virus and to eliminate it, you have to scan your computer using security programs like Windows Defender.
  • Tap the Win + I keys to open Update & Security.
  • Then click on the Windows Security option and open Windows Defender Security Center.
  • Next, click on Virus & threat protection > Run a new advanced scan.
  • Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.
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  7. Do not open too many tabs in Browser

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  8. Remove browser extensions

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  9. Make hardware upgrade

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  10. Format and reinstall system

    Drives, application traces, registry entries, etc. are piling up in your system over time, and if enough time is given it will clog your computer. From time to time it is a good idea to backup files and do a completely clean full format of HD and install a new and fresh copy of Windows with new and clean copies of applications and drivers.
That's it, 10 tips on how to make your Windows and PC perform better and speed it up. I hope that you found the read informative and helpful and I hope that I will see you soon.
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As you know, Windows has a built-in Automatic Maintenance feature that takes care of important tasks such as security scanning and updating, Windows software updates, Disk Defragmentation, System Diagnostics, Disk Volume Errors, and many more. So if you receive an error message saying, “Windows is unable to run automatic maintenance, The maintenance schedule is unavailable”, then this post will guide you in what you can do to resolve this issue. Here are some suggestions you can try if the Automatic Maintenance in your Windows 10 PC is not able to run.

Option 1 – Enable Automatic Maintenance

It is possible that Automatic Maintenance has been disabled so you can try enabling Automatic Maintenance on your Windows 10 PC. To do so, follow these steps:
  • Go to Control Panel.
  • From there, select System and Security > Security and Maintenance > Automatic Maintenance.
  • After that, set the time you want to run the Automatic Maintenance and then check the checkbox saying, “Allow scheduled maintenance to wake up my computer at the scheduled time”.
  • Click OK to save the changes.
On the other hand, you can also enable Automatic Maintenance via the Registry Editor. But before you proceed, you need to create a System Restore Point first.
  • Tap the Win + R keys to open the Run dialog box.
  • After that, type “Regedit” in the field and hit Enter to open the Registry Editor.
  • Navigate to the following path:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionScheduleMaintenance
  • Next, look for the “MaintenanceDisabled” key and then double click on it to open it and then set its value to “0”.
  • Click OK and exit the Registry Editor.
  • Restart your computer.

Option 2 – Check the Task Scheduler Services status

Majority of the tasks in Windows 10 run via services. So it is most likely that either the Service has been stopped or is set to the manual which is why Windows is unable to run Automatic Maintenance. Thus, you need to change it to automatic mode.
  • Tap the Win + R keys to open Run.
  • Type “services.msc” in the field and hit Enter to open Services.
  • Next, look for the Task Scheduler service and tap the T key on your keyboard which should take you to the services that start with T.
  • Double click on the Task Scheduler service and select the Automatic option under the Startup Type.
  • If it is not started yet, click on the Start button.
  • Then click Apply and OK to save the changes.

Option 3 – Check the Status in Task Scheduler

You can also try checking the status in the Task Scheduler. Just open the Task Scheduler > Task Scheduler Library > Microsoft > Windows > TaskScheduler. From there, make sure that Idle Maintenance, Maintenance Configurator, and Regular Maintenance are enabled.

Option 4 – Run the System File Checker

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Automatic Maintenance issue. 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.
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  • After opening Command Prompt, type in sfc /scannow and hit Enter.
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Option 5 – Run the DISM tool

The DISM tool is another command-line tool in the Windows operating system that could help users fix various corrupted system files. To use it, follow these steps:
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  • Then type in this command: DISM /Online /Cleanup-Image /RestoreHealth
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A Quick Guide to Fixing Connapi.dll Error Code

Connapi.dll Error Code - What is it?

Connapi.dll is a type of dynamic link library file. This file contains small programs like any other DLL file and is called to load certain programs on your PC. The Connapi.dll error message occurs either when using or installing programs. This error message is displayed in either of the following messages:
“Connapi.dll Not Found" "This application failed to start because connapi.dll was not found. Re-installing the application may fix this problem." "The file connapi.dll is missing." "Cannot start [APPLICATION]. A required component is missing: connapi.dll. Please install [APPLICATION] again." "Cannot find [PATH]connapi.dll"

Solution

Restoro box imageError Causes

Connapi.dll error may occur due to numerous reasons on your PC. The most common causes include:
  • Missing Connapi.dll file
  • Corruption of the Connapi.dll file
  • Driver Issues
  • Viral Infection
  • Registry Issues such as bad and invalid entries
This error may hamper your ability to access your desired programs causing you a great deal of inconvenience. And if the underlying cause of the error is related to the registry, then your computer can be at serious risks like system failure and crash.

Further Information and Manual Repair

To resolve Connapi.dll error code on your PC, here is a list of solutions. These are easy, very simple to perform, deliver the best results, and more importantly require no technical expertise.

Solution 1: Check your Recycle Bin - You May Have Deleted the File Accidentally

As dll files are shared files, it is possible that you accidentally deleted the Connapi.dll file while uninstalling a program from your system. In such a situation, go to the recycle bin and look for the file. If you find the missing Connapi.dll file, simply restore it and then try running your desired program again. If the program runs, then the error is resolved. However, if it still persists, then try other solutions given below.

Solution 2: Update the Drivers

Try updating drivers for hardware devices on the system. To do this, go to the start menu and then Control Panel. Double click on Add or Remove programs icon. Now select incompatible drivers and remove them. After that, restart your PC to activate changes. Now go to the manufacturers’ website to download new drivers and install them on your PC.

Solution3: Scan for Viruses

Another solution is to scan for viruses and malware. Sometimes these can also damage and corrupt dll files on your system. To perform a scan, simply download a powerful antivirus program and run it.

Solution 4: Clean and Restore the Registry

If the error code is still there, then this means the problem is triggered by the registry issues. To resolve it you must clean the registry and remove all the unnecessary and obsolete files like junk files, internet history, temporary files, and cookies. The best way to clean these files instantly is to install Restoro. This is an advanced, cutting-edge, and multi-functional PC Fixer. It has a user-friendly interface and is integrated with powerful utilities like a registry cleaner, anti-virus, and a system optimizer. It is compatible with all Windows versions. The registry cleaning feature scans your entire PC in seconds and detects all the registry issues. It removes all the bad registry entries and unnecessary files. Simultaneously, it also fixes the system files and dll files like Connapi.dll. The anti-virus utility removes all types of malicious software on your system while the system optimizer utility ensures your system performs at its optimum speed. To resolve Connapi.dll error, click here to download Restoro.
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An intelligent Solution to Repair Outlook PST Mailbox Errors

Outlook PST Mailbox Errors Malfunctions

Can you use an MS-Outlook e-mail account to send and get workplace e-mails on a daily basis? Are you using the exact same Outlook e-mail account for a long time? Are you getting PST Mailbox Errors? Then you have developed awareness and knowledge about Outlook PST Errors. Ms-outlook essentially stores the email items in a PST record. This includes all attachments, contacts, calendar items, your e-mails and records. You might encounter various kinds of Outlook Inbox error messages exhibited on the display in extended formats eg. 0x80040600 0x8004060c or 0x80040116. All all these are Outlook mailbox malfunctions that stop the Outlook program from executing jobs correctly and thus restricting your capacity to gain access to your e-mail account, see attachments, contacts, and calendar items that are significant.

Error Causes

There's not a single particular trigger for Outlook email malfunctions. A few causes can trigger these, but, the most frequent are virus contamination, 2 GB limit is exceeded by PST file and broken. There are no specific signals which will help help you identify but some pointers to look at include the following:-
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  • Obscure error messages start popping on your screen
  • You can’t add new contacts or change entry data in your calendar

Further Information and Manual Repair

When you experience these signs related to PST Inbox errors, it is advisable to repair the problem immediately to ensure it does not cause inconvenience for you and hampers your communication via Outlook emails. Remember this error not only inconveniences you but also hinders proper communication between various business partners. Determining the ultimate reason for distinct Outlook email malfunctions could be tricky, time-consuming, and might need specialized knowledge to nail it down with regards to fixing the Outlook mailbox malfunctions. In case you are not a specialist, working out and fixing this problem is an uphill process. To simplify this process, obtain and install an Outlook PST Repair Tool! This is an intelligent solution to fix all kinds of Outlook errors. You do not have to go deeper into the technical details of the problem. The Outlook PST Repair tool does it for you. An inbox repair tool identifies and also repairs all sorts of MS Outlook errors in seconds. It is easy to use, highly functional, safe and efficient. By installing an Outlook repair tool, Outlook errors can be easily removed from your computer and keep the errors from happening again. It also fixes damaged PST files and damaged e-mails can help regain data. Whatever you should do is to begin:
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