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What is RTX

Nvidia GeForce RTX is a high-end professional visual computing platform created by Nvidia, primarily used for designing complex large-scale models in architecture and product design, scientific visualization, energy exploration, and film and video production. Nvidia RTX enables real-time ray tracing. Historically, ray tracing had been reserved for non-real-time applications (like CGI in visual effects for movies and in photorealistic renderings), with video games having to rely on direct lighting and precalculated indirect contribution for their rendering. RTX facilitates a new development in computer graphics of generating interactive images that react to lighting, shadows, and reflections. RTX runs on Nvidia Volta-, Turing- and Ampere-based GPUs, specifically utilizing the Tensor cores (and new RT cores on Turing and successors) on the architectures for ray-tracing acceleration.

Advantage in games

With incredible lighting and shadows, reflection, better smoke, and water effects, and more, RTX has managed to place awesome real-time effects on your desktop all that’s to Nvidia technology behind it. Of course, in order to harvest this kind of technology and features game itself needs to support and have RTX in it, you can not turn RTX in just any game, the game itself must have technology build in it. Therefore we are bringing you the list of all RTX games you can find currently on the market so you can enjoy at the moment best graphics a PC can offer

List of games supporting the technology

• Amid Evil
• The Ascent
• Battlefield V
• Call of Duty: Black Ops Cold War
• Call of Duty: Modern Warfare
• Control
• Cyberpunk 2077
• Deliver Us the Moon
• Doom Eternal
• Dirt 5
• Fortnite
• Ghostrunner
• Justice Online
• Weibo
• JX3
• Lego Builder’s Journey
• Mechwarrior 5: Mercenaries
• The Medium
• Metro Exodus (and The Two Colonels DLC)
• Minecraft
• Moonlight Blade
• Mortal Shell
• Observer: System Redux
• Pumpkin Jack
• Quake II RTX
• Ring of Elysium
• Shadow of the Tomb Raider
• Stay in the Light
• Watch Dogs: Legion
• Wolfenstein: Youngblood
• World of Warcraft: Shadowlands
• Xuan-Yuan Sword VII

Upcoming games that will support RTX

• Atomic Heart
• Boundary
• Bright Memory: Infinite
• Convallaria
• Dying Light 2
• F.I.S.T.: Forged in Shadow Torch
• Five Nights at Freddy’s: Security Breach
• Grimmstar
• Maneater
• Project X
• Sword and Fairy 7
• Synced: Off Planet
• Vampire: The Masquerade — Bloodlines 2
• The Witcher 3: Complete Edition

Windows has a lot of built-in tools that help you fix tons of system-related issues. One of them is the System File Check which is the tool you can use to conveniently replace potentially corrupted or missing system files with good ones. But what happens when it does not work? Well, you’ve come to the right place as in this post, you will be guided on how you can replace a corrupted single Windows system file manually with a known good copy of the file if the System File Checker scan is not working. When you encounter this issue with the System File Checker, it will be unable to replace the corrupted system files and returns an error message instead. And so to fix and replace corrupted system files in your Windows 10 computer without the help of System File Checker, you can refer to the instructions provided below. Step 1: First, you need to open the log files listed below and identify which particular file has been corrupted:

• %userprofile%Desktopsfcdetails.txt
• Log %WinDir%LogsCBSCBS.log

Step 2: You will see all the details on the given log files. Once you find out the name and the path of the file, you have to take ownership of this corrupted system file. Step 3: To take ownership of the corrupted file, you need to pull up Command Prompt by tapping Win + R keys on your keyboard and then type “cmd” and tap Enter. Step 4: After opening Command Prompt, type and enter the command below to execute it:

takeown /f FileNameAndPath

Note: In the given command, “FileNameAndPath” represents the name and the path of the corrupted file. For instance, the corrupted file is named “wuapi.dll”, then you need to type “takeown /f C:/Windows/System32/wuapi.dll” Step 5: Next, you need to grant administrators full access & control to the corrupted file and you can do that via Command Prompt again. Step 6: In the elevated Command Prompt, type and enter the following command to execute it:

icacls FileNameAndPath /GRANT ADMINISTRATORS:F

Note: We’re going to use the wuapi.dll again as an example. So the command should be like this: icacls “C:/Windows/System32/wuapi.dll /grant administrators: F”. Step 7: Now all that’s left to do is replace the corrupted system file with a good copy from a trusted source. Once you have a copy, open an elevated Command Prompt again and execute the following command:

copy NewFileLocation FileNameAndPath

Note: In the command given above, the “NewFileLocation” is the location where you have saved the copy of the file. For instance, if you’ve saved it on your desktop, this is how it should look: “copy C:/Users/<username>/Desktop/wuapi.dll C:/windows/system32/wuapi.dll”

If you are trying to restore your computer using a System Image that has been created by the Windows Backup and Restore tool but encountered an error message instead that says, “Windows cannot find a system image on this computer”, you’ve come to the right place as this post will walk you through in fixing this error. Here’s the complete context of the error message:

“Windows cannot find a system image on this computer, Attach the backup hard disk or insert the final DVD from a backup set and click Retry. Alternatively, close this dialog for more options.”

In the error message, you are offered two choices – to either Retry or Cancel the operation. You can try to select Retry to try again but you will most likely get the same error if you do so. This kind of error can occur if the name of the WindowsImageBackup folder or any of its sub-folders has been modified. On the other hand, this error can also pop up if this folder or any of its sub-folders have gone missing or have become corrupted. To resolve the error, you can try to move the WindowsImageBackup folder or check its sub-folders. You can also try to isolate the System Image file or rename the System Image folder or remove all the unwanted sub-folders as well as use Command Prompt in Repair mode.

Option 1 – Try to move the WindowsImageBackup folder

The WindowsImageBackup folder must be stored in the root of the volume where it is stored, in line with the functioning of the System Restore utility. For example, if the WindowsImageBackup folder is stored in the “C:/Backups/System Restore Backups/New” location, then you have to move it to the C: drive as well.

Option 2 – Try to check the subfolders of the WindowsImageBackup folder

The classification of folders and files plays an important part to restore in restoring a computer from a System Restore point. Thus, if have modified the names of any files or folders inside the WindowsImageBackup folder, then you need to set the defaults. After that, run System Restore again and check if it fixes the error.

Option 3 – Try to isolate the System Image file

If the System Image file is stored in a USB storage device along with various System Restore images, then it’s no wonder why you’re getting this error. To set things right, you have to make sure that the System Restore image you wish to restore your computer from, is the only one that’s present at the root of the USB storage device.

Option 4 – Try renaming the System Image folder

If you have renamed the System Image folder prior to running System Restore, then it is most likely the reason why you’re getting the “Windows cannot find a system image on this computer” error. This error pops up because the System Restore utility in Windows 10 looks out for the WindowsImageBackup folder so if you have renamed it, you need to change its name back to what it originally was to fix the error.

Option 5 – Try to remove all the sub-folders of the WindowsImageBackup folder

If you have stored some foreign files inside the WindowsImageBackup folder, you need to get rid of them right away and return the folder to its default state as this folder must be left alone and should not be meddled with if you want to run System Restore smoothly.

Option 6 – Try to use Command Prompt in Repair Mode

• Open Command Prompt while your computer is in the Repair Mode.
• Next, type and enter this command where you need to replace “<Partition Letter>” with your drive’s letter: dir <Partition Letter>
• After you’ve found the WindowsImageBackup folder in any of the partitions, type and enter this command: dir <Parition Letter>WindowsImageBackup /s
• The command you entered will display all the contents of the folder exceeding 10 GB in total size. You can check and confirm the integrity of the folder and if you find that the integrity is violated, then it is the reason why you’re getting the error.

DLL files have certain functions that help the programs in the computer run properly. One of these DLL files is the Msvcr120.dll_clr0400.dll. This particular DLL file is responsible for the extraction of the required resources during the installation of a program and is used when the program is launched or when games are launched in the C++ language. However, a number of users recently reported that they’ve encountered an error that says, “Msvcr120.dll_clr0400.dll is missing” when they tried to install an application or when they tried opening an application. This kind of error could be due to several factors. It is possible that the DLL file is corrupted or there are some programs that interfere with the DLL file. On the other hand, it is also possible that it has been infected by a virus. To resolve this error, here are some potential fixes you need to check out:

Option 1 – Run System File Checker scan

The first thing you can do to fix the error is to try running the System File Checker or SFC scan. System File Checker is a command utility built into your computer that helps restore corrupted files and missing files. Refer to the following steps to run it:

• Hit the Win + R keys 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.

• Reboot your computer.

Option 2 – Troubleshoot the missing Msvcr120.dll_clr0400.dll error in a Clean Boot State

You can also troubleshoot the isDone.dll error in a Clean Boot state. It could be that there are some third-party applications in your computer that are preventing the application from getting installed and to isolate this possibility, you need to boot your computer in a Clean Boot State and then try installing the program again. Putting your computer in this state can help you identify which program is the culprit and thus isolates the problem. In a Clean Boot state, your computer will start using only the pre-selected minimal set of drivers and startup programs. Note that you have to disable and enable one process at a time.

• 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.)
• After you’ve set your computer into a Clean Boot State, make sure that you’re signed in as administrator and then try to install the application again.

Option 3 – Try to re-register the problematic DLL file

You can also try to re-register the DLL to resolve the problem. The Regsvr32 tool is a command-line utility that can be used to register and unregister OLE controls like DLL and ActiveX (OCX) controls 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.
  • exe /[DLL file]
  • exe [DLL file]

Note: Replace “[DLL file]” with the name of the DLL file that was pointed out in the error.

• After you execute the given commands, you should see a message saying, “DllRegisterServer in vbscript.dll succeeded” if the Regsvr32 tool was able to run successfully. After that, try to install the program again and see if it now works.

Option 4 – Try to replace the DLL file with a trusted source

• First, you need to get the new DLL file from another computer with preferably the same file version number.
• 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
  • x64: This PC > C:WindowsSysWOW64
• Next, type “cmd” in the Cortana search box and right-click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
• Now type the “regsvr32 ntdll.dll” command and hit Enter.
• Restart your PC and check if the error is now fixed.

Option 5 – Scan your computer using Windows Defender

The DLL file might also be infected with malware or virus and to eliminate it which could explain why you’re getting the “Msvcr120.dll_clr0400.dll is missing” error. Thus, 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.

Due to the latest android malware security analyst, there are alarmingly 5.8 million downloads of applications that will steal your Facebook data, your Facebook login credentials! Russian anti-malware company Dr.Web has found Trojan apps that steal your Facebook login credentials by tricking users into entering their private information in order to eliminate in-app ads. All of the applications have been removed from the play store and cannot be installed anymore but please do check your phone in order to remove them from your phone as well.

List of malware applications:

If by any chance you have any application from this list, consider uninstalling it from your phone for security reasons.

• PIP Photo
• Processing Photo
• Rubbish Cleaner
• Inwell Fitness
• Horoscope Daily
• App Lock Keep
• Lockit Master
• Horoscope Pi
• App Lock Manager

During the investigation, Dr.Web analysts found an additional Trojan app that had previously made its way onto the Google Play Store. Image editing software app EditorPhotoPip had already been removed but could be downloaded through aggregator websites.

Error Code 0x8007007b – What is it?

This error code occurs when users fail to activate their Windows operating system. It is one of the more popular Windows error codes since it affects many versions of Windows including Windows 7, Windows 8.1, and Windows 10. Error code 0x8007007b has common symptoms which include the following:

• Inability to activate a Windows installation
• Message box highlighting error code 0x8007007b

Solution

Error Causes

Error code 0x8007007b in Windows 8.1 usually results due to one or more main clauses. Windows 8.1 users may experience this error due to the use of volume-licensed media. The error code may also arise if the activation wizard is unable to connect to Key Management Service (KMS) host computer or if corrupted system files are present on your computer.

Further Information and Manual Repair

Windows error codes such as Error code 0x8007007b can be a complicated issue, requiring the use of technical knowledge and skills. For this reason, we have listed instructions in the simplest of forms to enable even average users to successfully complete manual repair methods that will resolve error code 0x8007007b.

The same approach has been applied to all our error code solutions. See also Error Code 0x00000024 and Error Code 0x80004005.

Below are the two main methods for correcting this issue.

Method One: Use Multiple Activation Key (MAK) to Activate Windows

This method involves the use of a Multiple Activation Key (MAK) instead of the Key Management Service (KMS) to activate the Windows operating system you intend to use on your PC. This manual repair method requires the use of Command Prompt so ensure you follow the instructions provided carefully so as to avoid the risks of causing harm to your system.

• Step one: Select Windows log key + X.
• Step two: Click Command Prompt, then Admin
• Step three: Type in admin password if Command Prompt requests it
• Step four: Type slmgr -ipk followed by the MAK product key. Note that the product key should have 25 characters with dashes between them like this xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

Attempt to activate your Windows installation once you’ve completed the exact instructions above. If you are unable to complete this process, consider getting help from a Windows repair technician or simply move to the next manual repair method listed below.

Method Two: Run System File Checker

System File Checker (SFC) enables Windows users to scan and repair errors or corruption on system files. Since such errors within your system files can cause error code 0x8007007b to occur, follow the steps below to fix this error code.

• Step One: Go to Start and type Command Prompt or CMD.
• Step Two: Run as Administrator
• Step Three: Type sfc /scannow with a space between “sfc” and “/scannow”.

The System File Checker tool will begin scanning your machine for corrupted or missing files in need of repair. If these files are found on your system, the tool will repair and replace them. Once this is done, restart your computer then check to see if you can now activate your Windows operating system.

Method Three: Use an Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 8 and other related issues when they do arise, download and install a powerful automated tool.

Error Code 0x80070643 – What is it?

Error Code 0x80070643 or Windows Update error code affects various versions of the Windows operating system, including Windows 10. Error code 0x80070643 usually occurs due to corruption within the .Net Framework. When this occurs, users will be unable to install updates they have downloaded on their PC.

Solution

Error Causes

Error codes within Windows occur for many reasons including corrupt system files, viruses, and lack of space on your PC. In terms of error code 0x80070643 in Windows 10, the cause usually relates to a problem with the .NET framework or errors within one’s registry.

Further Information and Manual Repair

To solve error code 0x80070643 in Windows 10, users will need to employ various manual repair methods. These methods seek to fix core problems that result in the error being present on your device in the first place. Thus, the methods include the use of the .Net Framework Repair tool, resetting Windows Update components, or running a clean boot.

Note that the instructions provided in this article must be followed correctly, as making changes to your computer via these manual repair methods can result in serious problems if mistakes are made. Consider a Windows repair technician if you are unable to complete the steps mentioned in the manual repair methods below. Note, failure to rectify this error might result in other error messages, such as error code 0xc004fc03

Method One: Run the .Net Framework Repair Tool

As error code 0x80070643 may be triggered by issues related to the .Net Framework on your machine, it’s important that you download the .Net Framework Repair tool. This tool, as the name suggests, helps to repair errors it detects within the setup or updates associated with the framework.

The tool is available on the official Windows site. Download the tool and follow the instructions provided. Once you’ve downloaded the .Net Framework Repair tool, run it and wait until it fixes all problems detected within the framework.

Afterward, reboot your computer and check to see if Windows Update is functioning properly. If the error code reoccurs, proceed to another solution by implementing the second manual repair method listed in this article.

Method Two: Reset Windows Update Components

This method is the most technical of all the methods mentioned in this article. It will require that Windows 10 user access Command Prompt and make modifications to the Windows registry – an area of the operating system which stores important information, settings and other details regarding hardware and programs installed on your machine. Follow the steps carefully and be sure to back up the registry before proceeding with this manual repair method.

Step one: Type Command Prompt in the search box near Start, then select Command Prompt (Admin).

Step two: Select Yes as soon as the User Account Control box appears.

Step three: Stop Windows Update service, the BITS service, and Cryptographic service by typing the following commands:

net stop bits

net stop wuauserv

net stop appidsvc

net stop cryptsvc

Step four: Be sure to press Enter after typing each command.

Step five: Type the following command, then Enter to delete qmgr*.dat files:

        Del "%ALLUSERSPROFILE%Application DataMicrosoftNetworkDownloaderqmgr*.dat"

Step six: Press enter after typing the following command:

        cd /d %windir%system32

Step seven: Reregister the files for BITS and Windows Update that you stopped in step three. To do this, type the following commands, selecting Enter after each command:

        regsvr32.exe atl.dll

        regsvr32.exe urlmon.dll

        regsvr32.exe mshtml.dll

        regsvr32.exe shdocvw.dll

        regsvr32.exe browseui.dll

        regsvr32.exe jscript.dll

        regsvr32.exe vbscript.dll

        regsvr32.exe scrrun.dll

        regsvr32.exe msxml.dll

        regsvr32.exe msxml3.dll

        regsvr32.exe msxml6.dll

        regsvr32.exe actxprxy.dll

        regsvr32.exe softpub.dll

        regsvr32.exe wintrust.dll

        regsvr32.exe dssenh.dll

        regsvr32.exe rsaenh.dll

        regsvr32.exe gpkcsp.dll

        regsvr32.exe sccbase.dll

        regsvr32.exe slbcsp.dll

        regsvr32.exe cryptdlg.dll

        regsvr32.exe oleaut32.dll

        regsvr32.exe ole32.dll

        regsvr32.exe shell32.dll

        regsvr32.exe initpki.dll

        regsvr32.exe wuapi.dll

        regsvr32.exe wuaueng.dll

        regsvr32.exe wuaueng1.dll

        regsvr32.exe wucltui.dll

        regsvr32.exe wups.dll

        regsvr32.exe wups2.dll

        regsvr32.exe wuweb.dll

        regsvr32.exe qmgr.dll

        regsvr32.exe qmgrprxy.dll

        regsvr32.exe wucltux.dll

        regsvr32.exe muweb.dll

        regsvr32.exe wuwebv.dll

Step eight: Reset Winsock in Command Prompt by typing the following command, then selecting Enter:

      netsh winsock reset

Step nine: Configure proxy settings in Windows 10 with the following command, then press Enter:

     netsh winhttp reset proxy

Step ten: To restart the BITS, Windows Update, and Cryptographic service, type the following commands, then press Enter:

        net start bits

        net start wuauserv

        net start appidsvc

        net start cryptsvc

Step eleven: Install the latest Windows Update Agent.

Step twelve: Restart your machine.

Once you’ve restarted your PC, check Windows Update to verify if the error code is resolved. You should now be able to access the latest updates on your device. However, if a problem has arisen and the error code reoccurs, you will need to proceed with a Clean Boot.

Method Three: Download an Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 8 and other related issues when they do arise, download and install a powerful automated tool.

If you have encountered the NO_USER_MODE_CONTEXT Blue Screen error when using your computer, read on as this post will walk you through a couple of suggestions you can try to resolve this Stop error. This kind of Blue Screen error can occur when a program is trying to leverage the use of a system driver but fails to do so. Some of the common causes of this BSOD error are incompatible or corrupted drivers, incorrect configuration of entries in the Registry, damaged memory locations, malware infection, and many more. In addition, this Stop error does not often occur and indicates that an attempt to enter user mode with no context was made. If this is the first time you’ve restarted your computer after you’ve installed additional hardware, you have to remove the hardware and then restart your computer once again and then check the Microsoft Hardware Compatibility List to confirm that the hardware and its drivers are compatible with your operating system. If it doesn’t help, you can check out the given suggestions below to fix the NO_USER_MODE_CONTEXT Blue Screen error in Windows 10.

Option 1 – Try to update or rollback your device drivers

The first thing you can try to fix the NO_USER_MODE_CONTEXT Blue Screen error is to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• Then locate the device drivers and right-click on them to open the Properties. Note that the main drivers that might be the cause behind the NO_USER_MODE_CONTEXT Blue Screen error will be listed under the “ID ATA/ATAPI controllers” section as well as the “Storage controllers” section.
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can also directly download the relevant drivers of your computer from the manufacturers’ website. So if you have an SSD, the issue might be due to an old storage driver.

Option 2 – Try running System File Checker or SFC scan

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 to 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

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.

 Reboot your PC.

Option 3 – Try running the Memory Diagnostic Tool

The Memory Diagnostic tool in windows can help resolve the NO_USER_MODE_CONTEXT Blue Screen error by checking and automatically fixing any memory-based issues. To run it, refer to these steps:

• Tap the Win + R keys to open Run and type exe and hit Enter to open the Windows Memory Diagnostic Tool.
• After that, it will give two options such as:
  • Restart now and check for problems (Recommended)
  • Check for problems the next time I start my computer
• Once your computer has restarted, perform a basic scan or you could also go for the “Advanced” options such as “Test mix” or “Pass count”. Simply tap the F10 key to start the test.

Note: After you select your preferred option, your computer will restart and check for memory-based issues. If it finds any issues, it will automatically fix them.

Option 4 – Perform System Restore

• First, 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 5 – Run the Blue Screen Troubleshooter

Troubleshooting Blue Screen of Death errors wouldn’t be complete without the Blue Screen troubleshooter. As you know, it is a built-in tool in Windows 10 that helps users in fixing BSOD errors like NO_USER_MODE_CONTEXT. 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.

What is Search.schooldozer.com? And how does it function?

Search.schooldozer.com is a browser extension that functions as a search engine. It is developed and maintained by “Schooldozer”. It claims to improve users’ browsing experience by providing them with improved search results. However, it does not really do the things it claims to do. In fact, they’re quite the opposite ones – instead of improving the browsing experience, it makes users’ browsing experience unsafe and full of sponsored content. This is in contrast to what it states in its Privacy Policy:

“Install applications the easy way and without the hassle, using the Schooldozer downloader. The Schooldozer platform stems from years of experience with installing applications, resulting in a highly optimized process, yielding faster downloads, better user experience, and more successful installations.”

In addition, once installed Search.schooldozer.com is installed, it will change the default settings of a browser such as the default search engine, homepage, and new tab page. This is why security experts regard this browser extension as a browser hijacker and a potentially unwanted program. The modification of the browser's settings allows it to control users’ browsing by redirecting them to sponsored sites as well as deliver sponsored content from its affiliated sites in order to gain profit via pay-per-click marketing. And if you think that the ads it displays are harmless, think again for some of these ads can redirect you to suspicious websites that might contain harmful content. What’s more is that this browser hijacker can also keep track and monitor all your browsing activities in order to obtain your browsing data like search queries, what sites you always visit, browsing history, browser type, OS version, and so on. The information collected is then used and may even be shared with its affiliated third parties to deliver more customized and personalized advertisements.

How is Search.schooldozer.com distributed over the web?

Like a typical browser hijacker, Search.schooldozer.com is distributed using the software bundling method where several unknown and unwanted programs are bundled in a software package. Thus when you install any software bundle, make sure to always opt for the Custom or Advanced installation setup rather than the quick setup to avoid installing unwanted programs like Search.schooldozer.com. To remove Search.schooldozer.com from your computer, follow the removal guide below carefully. Step 1: Start the removal process by closing all the browsers infected with Search.schooldozer.com. If you’re having a hard time closing them, you can close them using the Task Manager just tap on Ctrl + Shift + Esc. Step 2: After you open the Task Manager, go to the Processes tab and look for the infected browser’s process and end it. Step 3: Then close the Task Manager and tap the Win + R keys to open Run and then type in appwiz.cpl to open Programs & Features in Control Panel. Step 4: From there, look for Search.schooldozer.com or any unfamiliar program that could be related to it under the list of installed programs and once you’ve found it, uninstall it. Step 5: Edit your Hosts File.

• Tap the Win + R keys to open then type in %WinDir% and then click OK.
• Go to System32/drivers/etc.
• Open the host file using Notepad.
• Delete all the entries that contain Search.schooldozer.com.
• After that, save the changes you’ve made and close the file.

Step 6: Reset all your browsers to default to their default state.

Google Chrome

1. Launch Google Chrome, press Alt + F, move to More tools, and click Extensions.
2. Look for Search.schooldozer.com or any other unwanted add-ons, click the Recycle Bin button, and choose Remove.
3. Restart Google Chrome, then tap Alt + F, and select Settings.
4. Navigate to the On Startup section at the bottom.
5. Select “Open a specific page or set of pages”.
6. Click the More actions button next to the hijacker and click Remove.

Mozilla Firefox

1. Open the browser and tap Ctrl + Shift + A to access the Add-ons Manager.
2. In the Extensions, menu Remove the unwanted extension.
3. Restart the browser and tap keys Alt + T.
4. Select Options and then move to the General menu.
5. Overwrite the URL in the Home Page section and then restart the browser.

Internet Explorer

1. Launch Internet Explorer.
2. Tap Alt + T and select Internet options.
3. Click the General tab and then overwrite the URL under the homepage section.
4. Click OK to save the changes.

Step 7: Hold down Windows + E keys simultaneously to open File Explorer. Step 8: Navigate to the following directories and look for suspicious files associated to the browser hijacker such as the software bundle it came with and delete it/them.

• %USERPROFILE%Downloads
• %USERPROFILE%Desktop
• %TEMP%

Step 9: Close the File Explorer. Step 10: Empty the contents of Recycle Bin.

As you know, Windows Hello offers you quick access to computers since you can log in to your Windows devices three times faster compared to passwords with the help of the camera via Face recognition and fingerprint reader. This way, Windows Hello will recognize you right away. However, there are also times when you might encounter some problems when using Windows Hello. For one, if you are trying to add the PIN method to Windows Hello on your Windows 10 computer but you suddenly encountered an error code of 0x801c004d or if you are trying to use your existing pin and you encounter an error code of 0x80070490 along with an error message that says, “Not recognized”, then read on as this post will guide you on how you can fix both of these errors. Here is the complete content for both errors:

• “0x801c004d – Unable to enroll a device to use a PIN for login”
• “0x80070490 - Not recognized, Pin and fingerprint are no longer options for signing in”

If you got any of these two errors, there are several potential fixes you can check out to resolve them. You can try to check for any Windows Updates or create the PIN again or check the CNG Key Isolation Service. You could also try to reset the TPM or create a new User Account. For more information, follow the instructions provided below.

Option 1 – Try checking for any available Windows Updates

The first thing you can do is to check for any available Windows Updates. It is possible that your computer may be outdated and is the reason why you’re having troubles with Windows Hello. To check for Windows Updates, just go to Settings and from there, head over to the Update and Security section and click on Windows Updates located on the left pane, and then click on the Check for Updates option. Wait until the process of checking updates is completed and if it finds new updates, install it. After you install the new Windows Updates, check if you can now add the PIN on Windows Hello or not.

Option 2 – Try creating the PIN again

The next thing you can do is to create the PIN again by signing out and signing in again and then try creating the PIN once more. If this does not work, you can try restarting your computer and creating the PIN again. You could also try removing the PIN and then change it.

• Remove the PIN by going to Settings > Accounts > Sign-in options.
• From there, go to the PIN section and click on the Remove button.
• You will be asked to verify your account to proceed in removing the PIN, enter your credentials.
• Restart your computer and then set up a new PIN.
• Once you’re done, restart your computer and check if the error is gone now.

Option 3 – Try checking the CNG Key Isolation Service

The CNG Key Isolation Service is the one that stores and uses long-lived keys in a secure process complying with the common criteria requirements and it is possible that the error could be related to this service. This service is hosted in the LSA processes and provides key process isolation to private keys and associated cryptographic operations as required by the common criteria. Thus, you need to check this service to see if it’s the one that’s causing the error.

• Tap the Win + R keys to open the Run dialog box and type “services.msc” in the field and hit Enter to open the Windows Services Manager.
• Next, locate the “CNG Key Isolation Service” and once you find it, double click on it to open its Properties box.
• After opening its Properties, check its Startup type and select Manual. This is the default setting and if it is Disabled, then it’s no wonder why you’re getting errors with Windows Hello, thus, you need to enable it.
• Once done, restart your computer and check if you can now add the PIN to Windows Hello. If you still get the error, then you might want to try setting the CNG Key Isolation Service from Manual to Automatic and then click on the Start button and see if it fixes the error or not.

Option 4 – Try to reset the Trusted Platform Module or TPM

You might also want to try resetting the Trusted Platform Module or TPM to fix the error. You can do this by opening Windows PowerShell and then executing the “Clear-Tpm” command. After that, check if the error is now resolved.

Option 5 – Try to create a new User Account

You could also try to create a new User Account on your Windows 10 computer to fix the Windows Hello error. Once you have created a new local user or administrator account in Windows 10, check if you are now able to add the PIN from this newly created user account.