Fix Windows Activation error code 0xC004F078

Mozilla Firefox has introduced a new feature known as Restart with Windows which allows the browser to automatically start when your Windows 10 computer boots. This means that if you leave the Firefox browser opened while shutting down your computer, Firefox will re-open automatically along with the tabs that were opened right before you shut down your computer. Although some users may find this feature convenient, there are others who do not approve at all as it could be a nuisance. So if you’re one of the latter, then read on as this post will show you how you can disable the Restart with Windows feature in the Firefox browser on your Windows 10 computer. Refer to the instructions laid out below to get started.

• Step 1: Open Mozilla Firefox and if it’s opened already, just open a new tab and then type the following text in the address bar:

about:config

• Step 2: After typing the text given above, hit Enter and if a prompt with a warning message pops up, simply click on the “I accept the risk!” button to proceed.
• Step 3: Next, type “Restart” in the search filter which should display the following preference in the window:

“toolkit.winRegisterApplicationRestart”

• Step 4: After that, check for the preference value and then see if it’s set to true or not. If it is set to true, then it means that the Restart with Windows feature is enabled so obviously, to disable it, you need to set its value to false.
• Step 5: Now restart your computer without closing Firefox. After restarting your computer, you should no longer see Firefox starting automatically.

The Restart with Windows feature by default is disabled for most users. On the other hand, Mozilla will have this feature enabled as the default configuration in the coming weeks so it’s best that you now know what to do when that time comes since the newer versions of Mozilla Firefox are already being shipped with the Restart with Windows feature. However, if this post did not help you, then you might want to check if the feature has been added to the Startup folder, and from there, you can disable this startup program using the Task Manager > Startup tab.

Search Donkey is a Potentially Unwanted Program for Windows developed by Western Web Applications, LLC. This program may inject ads into your browsing sessions, giving you false search results and advertisements.

As described by Western Web Applications: “Search Donkey is entirely free to use. To keep Search Donkey free, we’ve partnered with high-quality ad providers and you may see additional ads when Search Donkey is installed.

While installed, Search Donkey will keep track of your web search queries, allowing it to let you know what pages you already visited, however, this data is also used to better target personal unwanted ads.

Search Donkey has been flagged as a Potentially Unwanted Program (PUP) by several anti-virus scanners, and their website is blacklisted by Google, giving warning to whoever visits it, and due to the nature of this application, it is not recommended to keep on your computer.

About Adware

Exactly what is Adware? If you have ever owned a computer, then you’ve probably heard the word numerous times, but it is still beneficial to define it. The term “adware” is actually a short form of advertising-supported software and it includes programs that are solely designed to display ads on a computer. A kind of malware, it will come bundled right in with the software package that a user either installs or accesses. Shareware or freeware programs are often times packaged with adware. If adware penetrates your system without you knowing and sends information about you or your PC to 3rd parties, then it is spyware. Quite often, adware changes your web browser settings to open pop-up adverts or modifies browser homepage and default internet search engine to some unwanted website. Adware is a common problem that affects a large number of PCs around the globe. If your computer doesn’t have any anti-malware software then it’s very likely it could get infected with adware as well as other malware.

Adware and its effects on your PC:

Adware could generate and display plenty of ads of all sorts which in turn disrupt the functions of your personal computer while browsing the net. Pop-ups might also show up on your computer’s desktop even when you’re not online. Adware results in a reduction of available memory and processing power, or resources. It also causes a slow net connection because adware consumes bandwidth whenever it retrieves adverts from the internet. Adware was originally created to support companies to generate income when they offer the software away free of charge. However, adware nowadays displays hundreds of adverts which will cause your PC to slow down and even crash.

Adware prevention:

As we discussed, adware could potentially be harmful to your computer, generally not by itself, but by bringing other problems to you. A top-quality antivirus program has the capability of permanently removing adware. We recommend Safebytes Anti-Malware, one of the top-rated anti-malware programs by world-renowned industry experts. It will act either as a preventative tool stopping websites or software installations that contain adware or as a removal tool for an already infected computer. To prevent adware, download software from websites that you trust. Never download from websites that you have never been aware of or tried before; Always study the end-user license agreement (EULA) of any application you want to install; You need to avoid freeware and shareware where possible; Lastly, watch out for ActiveX, since many adware and spyware companies make use of the technology to install their wares onto your computer system

Malware Blocking Internet And All Anti-Malware Software? Do This!

All malware is bad and the consequences of the damage will vary based on the specific type of malware. Some malware variants alter browser settings by adding a proxy server or modify the PC’s DNS settings. In these instances, you will be unable to visit some or all internet sites, and thus not able to download or install the required security software to eliminate the malware. So what to do when malicious software prevents you from downloading or installing Anti-Malware? There are a few options you could try to get around with this problem.

Remove viruses in Safe Mode

In Safe Mode, you can actually change Windows settings, un-install or install some program, and eliminate hard-to-delete viruses and malware. If the malware is blocking access to the internet and affecting the computer, launching it in Safe Mode will let you download antivirus and run a diagnostic scan while limiting possible damage. To enter into Safe Mode or Safe Mode with Networking, press the F8 key while the PC is starting up or run MSConfig and look for the “Safe Boot” options under the “Boot” tab. Once you’re in safe mode, you can attempt to install your anti-malware program without the hindrance of the malicious software. At this point, you could run the anti-malware scan to eliminate viruses and malware without hindrance from another application.

Switch over to an alternate browser

Some malware only targets certain browsers. If this sounds like your case, use another web browser as it could circumvent the malware. If you suspect that your Internet Explorer has been hijacked by malware or otherwise compromised by hackers, the ideal approach is to switch over to a different internet browser like Firefox, Chrome, or Safari to download your chosen computer security software – Safebytes Anti-Malware.

Create a portable USB antivirus for eliminating malware

Another solution is to make a portable antivirus program on your USB flash drive. Adopt these measures to run the anti-malware on the affected computer system. 1) Download the anti-malware program on a virus-free PC. 2) Connect the flash drive to a USB slot on the clean computer. 3) Run the setup program by double-clicking the executable file of the downloaded software, which has a .exe file format. 4) Select the flash drive as the destination for saving the software file. Follow the directions to complete the installation process. 5) Transfer the pen drive from the clean computer to the infected computer. 6) Double-click the Safebytes Anti-malware icon on the thumb drive to run the software. 7) Hit the “Scan Now” button to start the virus scan.

Detect And Remove Viruses With SafeBytes Anti-Malware

Today an anti-malware tool can protect the computer from different types of online threats. But wait, how to decide on the best one amongst countless malware protection application that’s available out there? As you might be aware, there are many anti-malware companies and products for you to consider. A few are well worth your money, but many aren’t. You need to choose one that is reliable, practical, and has a strong reputation for its malware source protection. Amongst few good applications, SafeBytes Anti-Malware is the strongly recommended software for the security-conscious individual. SafeBytes anti-malware is a trustworthy tool that not only secures your PC permanently but is also very easy to use for people of all ability levels. With its outstanding protection system, this tool will easily detect and remove most of the security threats, including adware, viruses, browser hijackers, ransomware, trojans, worms, and PUPs.

SafeBytes has outstanding features when compared to other anti-malware programs. Below are some of the great ones:

Real-time Threat Response: SafeBytes provides 100 % hands-free real-time protection and is set to check, block, and eliminate all threats at its very first encounter. They’re very effective in screening and getting rid of different threats because they’re constantly revised with new updates and safety measures. Robust, Anti-malware Protection: With its enhanced and sophisticated algorithm, this malware removal tool can identify and get rid of the malware threats hiding in the PC effectively. Internet Security: SafeBytes gives an instant safety rating about the pages you’re about to visit, automatically blocking harmful sites and ensure that you’re certain of your safety while browsing the world wide web. “Fast Scan” Abilities: SafeBytes’s virus scan engine is one of the fastest and most efficient within the industry. It's targeted scanning seriously increases the catch rate for viruses which is embedded in various computer files. Low CPU and Memory Usage: This program is not “heavy” on your computer’s resources, so you’ll not see any overall performance issues when SafeBytes is working in the background. 24/7 Customer Support: You can obtain totally free 24/7 technical support from their computer experts on any product queries or computer security concerns. Overall, SafeBytes Anti-Malware is a solid program as it has lots of features and could identify and remove any potential threats. Malware problems will become a thing of the past once you put this software to use. So if you’re searching for the best malware removal application out there, and if you don’t mind paying out some money for it, opt for SafeBytes Anti-Malware.

Technical Details and Manual Removal (Advanced Users)

If you don’t want to use malware removal software and prefer to get rid of Search Donkey manually, you could do so by going to the Windows Add/Remove Programs menu in the control panel and deleting the offending program; in cases of web browser plug-ins, you may remove it by visiting the browsers Add-on/Extension manager. You’ll probably also want to reset your internet browser. To ensure the complete removal, manually examine your hard disk and registry for all of the following and remove or reset the values accordingly. But bear in mind, editing the Windows registry can be a complicated job that only experienced users and professionals should attempt to fix it. Furthermore, some malware keeps replicating which makes it tough to eliminate. It is advised that you do the removal procedure in Windows Safe Mode.

What is the Error Code 652?

Error code 652 is a runtime error. It hampers you from accessing and running your program on your system. If not resolved, it can also lead to program corruption.

Solution

Error Causes

Runtime Error 652 can occur due to several causes. These include:

• Conflict of color depth within icons, the desktop, or a particular application in the Visual Basic environment.  This happens when the Image
• List control consists of more colors than the depth of what Windows can support.

Other causes include:

• Malicious software and malware attack
• Conflict with Terminate
• Invalid or corrupt registry

Further Information and Manual Repair

If you are not a computer programmer and don’t have any sound technical expertise, then you might think of hiring a professional to resolve the error on your PC. But this can be costly as you may have to pay hundreds of dollars to the technician. However, an alternative way to resolve the error code 652 is to download the Total System Care. This PC repair tool is integrated with an intuitive registry cleaner and a powerful anti-virus. It is safe, efficient, user-friendly, and available for free. Restoro is a multi-functional error tool and a one-stop solution to resolve practically all kinds of PC-related problems. By running this repair tool, you can fix runtime error code 652 on your system in seconds.

Restoro

What makes Restoro a hot favorite among PC users is that it is simple and easy to use. To operate this PC fixer, you don’t need to have the sound technical knowledge or be adept at computer programming. It can be used by all levels of PC users including beginners and intermediates. It has a neat and clean layout with simple instructions and navigation making it easy for users to resolve even the mightiest errors in just a few clicks.

Restoro features

Whether the underlying reason for the error code 652 is malicious software or registry corruption, Restoro takes care of all. Registry corruption occurs due to unnecessary files and data overload in the hard disk. This includes junk files, internet history, invalid registry entries, and bad registry keys. The registry cleaner embedded in Restoro intuitively detects and scans all registry issues. It wipes and clears the hard disk from all the unnecessary and obsolete files and thus cleans up your disk space. It repairs the corrupt registry and also boosts your PC’s performance. Thus it not only repairs the error code 652 but also resolves system slowdown issues by optimizing your system’s speed. With the help of its in-built anti-virus, it removes all the malicious software on your system that could be triggering the error code 652. Data security threats such as malicious software are detected and scanned and listed under the privacy error utility. It is compatible with all Windows versions including both the latest and old versions. You can run it to scan error code 652 on any Windows version you have installed on your computer.

Restoro for error Code 652

Furthermore, as mentioned above Error Code 652 is safe to use. It is bug-free and besides, it offers users outstanding data safety. It has a backup file feature that helps you save and create backup copies of all the data you have on your system. This is carried for safety purposes. It enables users to retrieve and recover data in case the data and files are lost during the repair thus sparing you from a big loss. The error code 652 may be critical but it can be resolved in seconds with Restoro. Here’s how:

1. To get started click here to download and install Restoro on your system
2. Once installed, run it to scan for errors. It will take only a few seconds to scan your entire PC.
3. Then simply create a backup and click on repair to resolve and resume your desired program.

For best results, it is advised to run Restoro on the computer often. This will help you detect PC errors and repair them timely. It will help you ensure proper PC maintenance, health, and performance.

This post will guide you in fixing yet another annoying Blue Screen of Death error, “BUGCODE_USB_DRIVER”. This particular BSOD error occurs due to some issue with usbhub.sys, winusb.sys, or usbport.sys system driver file. When you encounter this kind of Stop error on your Windows 10 PC, it indicates that an error has occurred in the Universal Serial Bus or USB driver. The USB driver is issued by Microsoft themselves and it comes along with the Windows 10 system which is why it is difficult to download its latest version using a web browser. Thus, you need to take some basic steps to resolve the problem. Carefully follow the given fixes below to fix the BUGCODE_USB_DRIVER Blue Screen error and before you proceed, you need to create a System Restore Point, this way you have some backup in case something goes out of hand.

Option 1 – Update the USB Controller Drivers

• First, click the Start button and type “device manager”.
• Then click on the “Device Manager” from the search results to open it.
• From there, look for the “Universal Serial Bus controllers” option and then right-click on each one of the USB drivers and select the Update Driver from the menu.
• Restart your PC and then click the “Search automatically for updated driver software” option.

You also have the option to update the motherboard and the USB driver from the manufacturer’s official website.

Option 2 – Check for any available Windows Updates

Another you can try is to check if there are any Windows Updates available to make sure that your Windows 10 PC has all the latest updates installed. All you have to do is go to Settings > Update &security. From there, just click on the Check for updates button.

Option 3 – Uninstall conflicting programs and services

There are certain programs like VMWare, Virtual Box, Hyper-V Virtualization services that might be in conflict with the USB port drivers on the parent operating system. Thus, you can try uninstalling the aforementioned programs and other similar ones to see if it fixes the BSOD error.

• In the search box, type in “control” and then click on Control Panel (desktop app) among the search results.
• After that, select Programs and Features from the list which will give you a list of all the programs installed on your computer.
• From there, look for the concerned program and select it and then uninstall it.

Note: If you have downloaded the app from the Windows Store, you can simply right-click on it from the application list and then uninstall it. If uninstalling the programs mentioned above didn’t help, you might want to try putting your PC in a Clean Boot State to help you find the faulty program.

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

Option 4 – Modify the Power Settings

• In the Cortana Search box, type “power options” and then select Power Options from the search results.
• After opening Power Options, click on Change plan settings for your selected power plan.
• Next, click on Change advanced power settings.
• Then look for USB Settings and click on it to expand it.
• Now expand the USB selective suspend setting and then disable it.
• After that, click on the Apply and then OK buttons to save the changes made.

Option 5 – Check for any hard disk errors

• On your desktop, right-click on the “This PC” or computer icon and then select Manage to open the Disk Management. Here you get to check your drive’s health.
• Next, click on Disk Management on the left side panel.
• From there, check the state of your drives. If it shows that all your partitions are healthy then it means all is good and that the problem may have something to do with some physical issues with your hard drive.

You might also want to run the CHKDSK utility to help you fix any issues with your hard disk. If your hard drive has issues with integrity, the update will really fail as the system will think that it’s not healthy and that’s where the CHKDSK utility comes in. The CHKDSK utility repairs hard drive errors that might be causing the problem.

• Open Command Prompt with admin privileges.
• After opening Command Prompt, execute the following command and hit Enter:

chkdsk /f /r

• Wait for the process to be completed and then restart your computer.

The world today is still sadly under pandemic and by the looks of it, COVID-19 is here to stay, well at least for some time in the near future. Razer seems to think so as well since their upcoming gear is not really what you would expect. Enter Hazel, a new and upcoming Razer smart mask.

Protection

Hazel mask has a high bacterial surgical N95 filter with fluid resistance that will protect you against large droplets and splashes. A detachable active ventilator regulates airflow and is capable of filtering around 95% of airborne particles. Mask comes with a special charging case that has an auto sterilization UV light that will kill bacteria and viruses inside the case interior while it charges. When the mask is recharging it will change color from red to green visually showing the level of the current charge. Mask of course has easy to replace filters inside ventilators and Razer is standing by that fully charged mask will last enough for full-day use. An active ventilation system brings cool air while releasing breathing heat at the same time drastically reducing CO2 inside the mask that could produce dizziness and headache. Silicon guard is on its edge gluing to around your face in order to prevent exterior air sneaking inside the mask and positioning it firmly so it does not rest on your lips in order for easier and clearer communication.

Hazel personalization and technical features

Hazel has a clear and transparent design making it better for social interaction since other people will be able to see your lips and smiles thus making it more natural. A low light mode that turns on automatically when it is dark outside is also aimed for easier communication. Speaking of communication, the mask comes with voice Amp technology that has a built-in mic and amplifier thus making your voice lines clear so you are not muffled when wearing the mask itself. Your friends and other people will be able to hear you like you are not wearing a mask at all. Thicker air loops apply less pressure on ears and can be adjusted for a more secure fit, while the mask itself can be custom-made to fit your face shape. And of course Hazel comes with 16.8 million colors and a suite of effects with Razer Chroma RBG

If you are trying to update your Windows 10 computer but are not able to do so since your computer is running low on storage then this obviously indicates that there is not enough disk space available on your drive where Windows 10 has been installed. As you know, when Windows 10 downloads the update packages, it extracts them in a separate folder which means that there should be enough space on that particular folder for the update to begin with. Windows do not really check systems for any adequate space requirements before it even initializes the update or upgrades and you only get to know about it right when the update process starts. On Windows 10 thin clients or the ones with embedded systems that have limited storage space, when Windows Update runs, the update initialization may fail because as pointed out, Windows does not check systems for adequate space requirements so you may have to do the work for them by making sure that your disk has enough space available. Here are some suggestions you can follow to resolve Windows 10 update issues on computers with low storage space.

Option 1 – Delete the files from the Download folder

Since you are going to delete everything manually, you need to create a backup for all your important files which you may have placed in the Download folder. After you create backup copies of important files, delete the files from this folder or you could simply tap the Shift + Del keys to remove the files permanently after you selected them all.

Option 2 – Change the Windows Update Folder location

You might have to change the Windows Update folder location where Windows download all the files need to update the operating system if you cannot really create some space on your primary driver. So all you have to do is set the drive with enough space available for the update to be completed.

Option 3 – Uninstall apps and programs you no longer use

In some cases, apps and programs take up a lot of space on your drive. So if there are programs or apps that you no longer use, you can uninstall them to save storage space. To do so, follow these steps:

• In the search box, type in “control” and then click on Control Panel (desktop app) among the search results.
• After that, select Programs and Features from the list which will give you a list of all the programs installed on your computer.
• From there, look for the apps and programs that you no longer use and right-click on each one of them and click on Uninstall.

Option 4 – Move files to another drive

This is another thing you can try. You can move files, especially the ones with large sizes, to another drive to make up space on your drive. After that, install the updates once again.

Option 5 – Reduce on-drive files from Cloud services

If you are using tons of cloud backup services such as OneDrive and Dropbox, you might want to consider reducing the number of files you have on those cloud backup services. You can do what you’ve done on option number three and have those files moved to another drive to free up storage space.

Option 6 – Empty the contents in Recycle Bin

As you know, the files that are deleted from your computer goes to the Recycle Bin first. So if you have not emptied Recycle Bin for a long time now, the files you delete are still actually taking up space on your drive. Thus, you need to empty the contents in the Recycle Bin to save storage space.

Option 7 – Clean up temporary files

You can use the Windows 10 Storage Sense feature which can clean all the temporary files from your computer. To use Storage Sense, follow the steps below.

• Open Setting > System > Storage from the WinX Menu.
• From there, you will see a list of all the local and connected storage devices along with the details on the free space.
• Now make sure that the Storage Sense feature is turned On then go find a link that says “Free Up Space” and click it to open.
• After that, a screen which is the built-in program in Windows 10 will appear and will scan your computer for the following junk files so you can free up disk space:
• Windows Upgrade Log Files
• System created Windows Error Reporting Files
• Thumbnails
• Temporary Internet Files
• Previous Windows Installation Files
• Delivery Optimisation Files
• DirectX Shader Cache

Choose the files you want to get rid of and then click on the remove files option. Note that you’ll have an idea of the total size as you select any of the junk files listed above.

Error 504 - What is it?

Error 504 is a type of runtime error that occurs on Windows PC. A runtime error is a bug that causes software or hardware problems thereby preventing programs from working on your PC correctly. This error may occur during the execution of the program.  It also slows down your PC performance.

Solution

Error Causes

Error 504 can be triggered by many causes such as:

• Incompatibility between 2 software programs
• Malicious software
• Missing DLL files
• Registry issues

Further Information and Manual Repair

Whenever you experience the error 504 on your system, it is advisable to resolve it immediately, typically because runtime errors like error 504 can lead to system failure and valuable data loss which is more than often hard to recover. To resolve this error code, you don’t necessarily have to hire a professional for the job. In fact, here are some solutions that you can try to fix by yourself, even if you are not a computer programmer.

1. Get the latest updates for Windows and for the program showing the error

This is a quick way to resolve runtime error 504 on Windows PC. To update the latest updates for Windows and for the program causing the error, open Windows Update by going to the start menu. In the search box type ‘update’ and then in the list of results click Windows Update.  In the left pane click on check for updates, wait while Windows looks for the latest updates. It will show you a list of updates available select the important updates that you want to install. Then click ok and then click install updates. After the updates are successfully complete, restart your PC and try running the application. If the error still persists, then try the solution given below.

2. Scan For Malicious Software

Sometimes the runtime error 504 may occur due to viral infection and malware. So, to resolve it download an antivirus. However, the antivirus can also slow down your PC performance.

3. Scan for Registry Issues

Another way to resolve it is to scan for registry issues. The registry and DLL files get damaged when it overloads with too much data. This particularly includes irrelevant and obsolete files. Registry issues trigger runtime errors like 504. The best way to resolve it is to download Restoro. This is an advanced and multi-functional PC Fixer embedded with multiple utilities like a registry cleaner, an antivirus, and a system optimizer. The registry cleaning utility resolves registry issues by removing the unnecessary files completely and repairing the damaged dll files. The antivirus module scans and removes all kinds of malicious software on your PC like viruses and Trojans, thereby resolving the runtime error 504 in seconds. As for speed, Restoro also functions as a system optimizer which boosts the performance of your system significantly. Restoro is safe and bug-free software. It has simple navigation and a user-friendly interface which makes it very easy to operate and workaround. It is compatible with all Windows versions. Click here to download Restoro and resolve error 504 today!

VSSControl: 2147467259 Backup jobs failed. Cannot create a shadow copy of the volumes containing the writer’s data. VSS asynchronous operation is not completed. Code: [0x8004231f]

This message pops up when you are creating a snapshot system restore, usually, the issue is tied with insufficient space or service stopping. We will go into detail about how to fix both so you can finish the operation without any issue.

1. Check Volume Shadow Copy Services

   Easier and faster fix than the next one. Launch Services from the Start Menu, look for Volume Shadow Copy, double-click on it, and check the Service status. If it is stopped, click on the Start button. If it’s running, restart it by clicking Stop > Start.

2. Increase Shadow Storage Space

   If the first fix didn’t resolve the issue then you need to increase Shadow Storage Space. Launch Command Prompt as an administrator. Now, type the following command to check your Shadow Storage Space. vssadmin list shadowstorage Now, type the following command to allocate more storage (you can change 10GB with the amount of space you want to allocate) vssadmin resize shadowstorage /For=C: /On=C: /MaxSize=10GB

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.

You will notice the blurred background on the login screen right away when you start your Windows 10 computer that’s running the v1903 and up. This kind of blurred background is known as “Acrylic Blur Effect on Sign-in Screen”. This new feature delivers a beautiful experience to users by adding more focus to the login screen. However, no matter how nice this feature is and even if it only stays for less than a minute, not all users like it and if you’re one of these users, read on as this post will guide you in disabling the blurred background login screen in your Windows 10 computer. Disabling the blurred background in the login screen can be done in two methods. The first one is via the Registry Editor and the second one is via the Group Policy Editor. Before you proceed, make sure that you are using an admin account and you must create a System Restore point first. Once you have that covered, follow the options provided below.

Option 1 – Disable the Blurred background in the login screen via Registry Editor

• First, tap the Win + R keys to open the Run dialog box and type “Regedit” in the field, and hit Enter to open the Registry Editor.
• After that, navigate to this registry path: KEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindowsSystem
• Next, right-click on any empty space in the right pane and create a new DWORD (32 bit) and name it as “DisableAcrylicBackgroundOnLogon”.
• Once you’ve created the DWORD, double click on it and set its value to 1 to disable it and 0 to enable it.
• After you make the necessary changes, restart your computer. You won’t now see the blurred background on the login screen.

Note: No matter what option you select to change the background, it will stay blurred when you click on the login button. At the time of writing, there is no way to disable this feature in the Personalization section so the Registry Editor will have to suffice for now.

Option 2 – Disable the Blurred background in the login screen via Group Policy Editor

• Tap the Win + R keys to open the Run utility and type “gpedit.msc” in the field and tap Enter to open the Group Policy Editor.
• After that, navigate to this policy setting: Computer ConfigurationAdministrative TemplatesSystemLogon
• From there, double click on the “Show clear logon background settings” and since its default value is “Not configured”, set it to “Disabled”. You will see the following description under this setting:
  • “This policy setting disables the acrylic blur effect on the logon background image.”
  • “If you enable this policy, the logon background image shows without blur.”

• Now click on OK and then check the login screen.

Note: If you don’t configure or if you disable this policy, the logon background image adopts the acrylic blur effect. However, if it didn’t work, you have to restart your computer and then check.