How to Add Safe Mode to Windows 10 Boot Menu Options

‘R6025 pure virtual function call’ is a runtime error that occurs suddenly on the screen and disrupts the program being run prior to it. This error display indicates that the program has been corrupted. R6025 runtime error usually occurs with the Visual C++ framework.

Solution

Error Causes

This error occurs when the C++ program crashes which is usually because of the malfunctioning or missing of the device driver or incomplete device driver files. It happens because your application indirectly calls a pure virtual member function in a context where a call to the function is invalid. Most of the time, the compiler detects it and reports it as an error when building the application. R6025 error is usually detected at run time.

Further Information and Manual Repair

To fix the R6025 pure virtual function call error, you need to find the call to the pure virtual function. After you find the call, you need to rewrite the code so that it is not called again. There are 2 ways to do this:

Alternative 1

One way to fix the R6025 pure virtual function call is to replace the function with an implementation that calls the Windows API function DebugBreak. The DebugBreak causes a hard-coded breakpoint. Once the code stops running at this breakpoint, it is easy for you to view the call stack. By viewing the call stack you can identify the place where the function was actually called.

Alternative 2

Another quick way to find a call to a pure virtual function to fix the R6025 error is to set a breakpoint on the _purecall function that is usually found in PureVirt.c. By breaking this function you can trace the problem occurring and rewrite the call to ensure the error does not occur and the program you are trying to develop on the Visual C++ framework is easily developed. If R6025 Error is related to Windows Registry Problem Then here’s how you can fix the problem: To fix the runtime error R6025, run registry cleaner software to scan and fix all errors.  This alternative is suitable if the R6025 error is related to the Windows registry problem and where the error has occurred due to corrupted or malicious registry entries. You can download the registry cleaner repair tool for free. Run it to scan errors and then click the fix error button to repair the problem immediately.

DirectX encountered unrecoverable error usually face gamers when they try to star certain game. In this guide, we will help you to get over it and solve the issue. Follow steps in this guide one after another since they go from most simple ones to complex ones so following is advised in order not to waste a ton of time and resources doing wrong tasks.

1. Check your game page and your DirectX

   The first and most common thing that can cause this type of error is when your installed DirectX is not the same version that the game requires. Check the game store page to see system requirements and write down which DirectX version it requires in order to run. Then press ⊞ WINDOWS + R to bring run dialog and type in it DXDIAG and press ENTER DX diagnostic window will pop up and at the bottom, you can find which DirectX version is installed on your system. If versions are different, install the required DirectX version and run the game.

2. Update or reinstall GPU drivers

   DirectX can get corrupted via bad driver update, in order to fix this, reinstall or update your Graphic drivers to the latest version from the official manufacturers' website.

3. Set custom scaling to 100

   Go into Windows settings and set custom Display scaling to a value of 100, sign out, and then sign back in.

4. Delete registry key

   Note that you should do this as the last option and be very careful since you can crash whole Windows in this way. Press ⊞ WINDOWS + R to open the run dialog and type RegEdit in it to open the registry editor. Find this key: ComputerHKEY_CLASSES_ROOTPROTOCOLSFiltertext/XML and delete it from the registry, you might want to do a backup of the registry first, just in case.

If your operating system cannot or is not able to load a required DLL file on your Windows startup and you encounter a message saying, “Failed to load DLL”, then you’ve come to the right place as this post will guide you in fixing this problem. When you encounter this kind of issue, you will see either of the following error messages on your screen:

“The dynamic library dll failed to load.” “Failed to load dll library.”

This kind of error can occur when your Windows operating system fails to locate the DLL library which the system needs to access during startup. It can also occur when the DLL file is not in a directory specified in the path or when the DLL file is corrupted or has gone missing. Moreover, you can also encounter this error if the DLL file is infected with some malware. Whatever the case is, here are some suggestions you have to check out to resolve the problem.

Option 1 – Try to reinstall the program

The first thing you can do is to reinstall the program that’s giving you this error. Once you’ve uninstalled the program, download its latest setup file from its official site and then install it again.

Option 2 – Try checking the startup programs

You might also want to check the startup programs on your computer, especially the Windows Registry startup paths, and then remove the startup entry to the concerned DLL file.

Option 3 – Try to re-register the problematic 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 the ntdll.dll file crash error. The Regsvr32 tool is a command-line utility that can be used to register and unregister 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.
  • 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:/Windows/System32
  • x64: This PC > C:/Windows/SysWOW64
• 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 – Try checking the details in the Event Viewer

Checking the details in the Event Viewer can also help you find out the root cause of the problem as the Event Viewer usually contains detailed information about the error.

Option 6 – Try running the DISM tool

You might want to repair potentially corrupted files in your system as having them could also trigger the “Failed to load DLL” error. To repair these corrupted system files, you can run the DISM commands:

• Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
• After that, input each one of the commands listed below sequentially to execute them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • Dism /Online /Cleanup-Image /RestoreHealth

• Once you’ve executed the commands given above, restart your computer and check if the “Failed to load DLL” error is now fixed.

Option 7 – Try scanning 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 “Failed to load DLL” 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.

Error Code 0x800704c7 – What is it?

Error code 0x800704c7 occurs when Windows users attempt to update their system. It affects various Windows users including those using Windows 7, Windows 8, and 8.1 and Windows 10. It usually occurs due to poor maintenance of the system and includes common symptoms such as the following:

• Inability to upgrade your Windows operating system
• Message box with error code 0x800704c7

Solution

Error Causes

Error code 0x800704c7 in Windows 10 can occur due to several reasons. For instance, it may be due to corrupted or missing system files. It may also result from malicious programs affecting your system or occur when a program or several programs are running in the background of one’s system while the user attempts to run the update.

To correct this issue, Windows users will need to select one or a few methods, depending on the issues affecting their PC.

Further Information and Manual Repair

Some of the best solutions for error code 0x800704c7 available to Windows users including using tools to scan for missing systems files or correct other issues inherent within your system.

These methods may include the use of Command Prompt and the performance of technical repair procedures. If you are uncertain of your skills, avoid compounding the issue or causing further damage to your PC by contacting a skilled Windows repair technician. This IT professional will be best equipped to use Windows tools and other methods to resolve error code 0x800704c7.

Method One: Scan Your System for Missing or Corrupt System Files

Using System File Checker Tool (SFC), Windows users can check their system for missing o corrupt system files. These utility tools within your Windows device will be able to replace missing files and repair corrupted ones, resulting in a more efficient system.  Run this tool by following the steps below:

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

After running these procedures, check if the error code has been resolved. Go to Settings > Update & security > Windows Update. Update your Windows operating system. If error code 0x800704c7 reoccurs, you will need to try the next method below.

Method Two: Restore your System

System Restore is one of the best manual repair solutions Windows users can apply when they come across error codes like error code 0x800704c7. That’s because this method requires no technical or advanced knowledge and therefore can be performed by anyone. Simply follow the steps below to restore your system to a period of time in the past where the error was not present on your system. If done correctly, this could enable you to resolve the issue with little frustration on your part.

• Step one: Type Control Panel in the search bar near the Start button
• Step two: Select Control Panel, then Recovery
• Step three: Select System Restore then click Next
• Step four: Select a restore point before appeared on your Windows 10 system
• Step five: Select Next then Finish

Note that once System Restore is enabled it will remove drivers, apps, and even updates installed after the restore point. For this reason, be careful to choose the most appropriate restore point. Also once you’ve completed this task, check to see if you are able to update your system. If the update stops before the process is complete and a message box occurs with the error code 0x800704c7, proceed to the next manual repair option below.

Method Three: Check for and Remove Malware

Viruses or other forms of malware can adversely affect your system, causing error codes and other issues to take place. To resolve error code 0x800704c7 in Windows 10, check for and remove malware using a reputable anti-malware program.

If no anti-virus software is present on your system or if you scan your device but fail to spot an issue, proceed to method four.

Method Four: Use an Automated Tool

This method involves the use of a powerful automated tool. But why is this important you might ask? A third-party tool is often the best solution when all manual repair efforts fail. Automated tools come equipped to tackle the most serious PC problems including error codes which can cause frustration and result in reduces PC performance.

What is Error 2032?

Error 2032 is a Windows stream error. The error is generated when running applications like Flash. It shows that the application is unable to request ads from server.

Error Causes

The error 2032 is triggered due to multiple reasons including:

• The URL cannot be located or is blocked
• HTTP Service is not found
• Incorrect proxy settings
• Automatic cookies handling
• Corrupt Flash Player
• Viral infection
• Registry issues

Further Information and Manual Repair

Here are some easy and best do it yourself methods to resolve the error 2032 on your system:

Fix the Proxy Settings

To do this, first, go to the start menu and press RUN, type regedit in the RUN box and press enter. Now from the left-hand panel of the registry path open: HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionInternet Settings. Now double click the proxyenable string and replace its value with 0. After that, right-click on proxy server and select delete option. Then exit Regedit and restart your PC to activate changes.

Verify the URL

Sometimes the error 2032 may be generated due to wrong or incorrect URL in the HTTP Service URL property. So, verify your URL and look for typos. Specifying the correct URL can fix the error right away.

Check Cookies Handling

Automatic cookies handling can also trigger this error code. Therefore, to resolve the error, it is advisable to disable automatic cookies handling. This can be done by launching your web browser. Go to tools and then press the privacy tab. Now click on the advance tab from settings and un-check override automatic cookie handling. To confirm changes press OK.

Uninstall and then Reinstall the Flash Player

It is possible your Flash Player is corrupt. Therefore, another way to fix error 2032 is to uninstall the Flash Player and then reinstall it on your system.

Scan for Viruses

Programs usually get corrupted due to two reasons, viruses or registry issues. Therefore, to remove viruses on your PC, download and run an antivirus program.

Clean and Restore Registry

Also, clean the registry.

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.

PrintNightmare vulnerability has been a struggling issue for Microsoft in the past weeks, each time it seems to be addressed and fixed something new popped up and it still had issues. Microsoft finally addressed the issue but with a price. The default behavior of Point and Print is changed. From this fix onward, the Point and Print driver installation and update behavior will require administrator privileges, which should prevent the exploit to the Windows Print Spooler that could be used by malicious individuals to gain administrative privileges in Windows. The drawback of this fix from Microsoft is that non-elevated users may have difficulty adding or updating printers. Microsoft feels that the security risks caused by PrintNightmare are worth the tradeoff, though. If you really want to let non-elevated users add printers, you can follow the instructions in this Microsoft Support article to disable this mitigation with a registry key. However, doing so will expose you to this known vulnerability and isn’t recommend.

If you encounter an error message saying, “The connection was denied because the user account is not authorized for remote login” when you try to establish a remote connection, read on as this post will help you resolve the problem. This kind of error occurs when the targeted host does not allow you to access that system remotely. Based on the error, you are not authorized to log in remotely which means that you need to obtain the correct permission. There are several potential fixes you can try for this error. You can try to check the Remote Desktop Users group or add users to the Security group or check the Remote Desktop Service itself. Refer to the options provided below for more detailed instructions to fix the “The connection was denied because the user account is not authorized for remote login” error.

Option 1 – Try checking the Remote Desktop Users group

You can encounter this error when the Remote Desktop Users group does not have any permission for your user account that you are using to establish a remote connection. Thus, you need to make sure that your user account is a member of the Remote Desktop Users group. How? Refer to these steps:

• Tap the Win + R keys on your keyboard and then type “cmd” in the field and tap Enter or click OK to open Command Prompt.
• After opening Command Prompt, type the “lusrmgr.msc” command and tap Enter to execute it.
• Alternatively, you can also search for “lusrmgr.msc” in the Start Search and once you’ve opened it, select Users and then double click on your user name to open its Properties.
• From there, switch from the “General” tab to the “Member Of” tab.
• Next, if you can’t see any Remote Desktop Users group under the Administrator, you have to add it. To do that, just click on the Add button.
• After that, on the newly opened window, click on the Advanced and Find Now buttons, respectively.
• And in the Search results box, double click on Remote Desktop Users.
• Now click on the OK button to save the changes made and check if you can now connect to a remote host or not.

Option 2 – Try to add a user to the Security group

You can actually block or allow a user from logging on through the Remote Desktop Services. However, if you do not have the right setting, you won’t be able to use this functionality. Thus, you need to confirm this setting. To do that, follow the steps below.

• In the Start Search, type “secpol.msc” in the field and tap Enter to open the Local Security Policy panel.
• From there, go to User Rights Assignment.
• Next, look for a policy named “Allow log on through Remote Desktop Services” located on your right-hand side and then double click on it to open its Properties.
• If you were not able to find the Remote Desktop Users under Administrator, then you have to add it by simply clicking on the Add User or Group button.
• After that, enter “Remote Desktop Users” in the blank field and click the OK button to save the changes made.
• Now restart your computer and try connecting again to the remote host.

Option 3 – Try checking the Remote Desktop Users group

There is a service that’s supposed to be running and needs to be set up correctly for you to connect to the remote host. And so you need to ensure that this service is up and running. To do so, follow these steps:

• Tap the Win + R keys to launch the Run utility.
• Then type “services.msc” in the field and hit Enter or click OK to open the Services Manager.
• Next, look for the Remote Desktop Services and double click on it to open its Properties.
• After that, go to the “Log On” tab and select the “This account” option and then click on the Browse button.
• On the next screen that appears, look for the Advanced button and click on it and use the Find Now button to search.
• You will see “NETWORK SERVICE”. Double click on it and then save the changes you’ve made to the settings.
• Finally, restart your PC and see if the problem is now fixed.

What is the Error 421?

Error 421 is a common SMTP (Simple Mail Transfer Protocol) Outlook error message. MS Outlook is one of the best and popular email applications widely used by PC Windows users for sending and receiving emails within and outside workplaces. It is most commonly used in offices by professionals for faster communication. This error may occur while sending and receiving emails on the server. The error 421 messages is displayed in either of the following formats:

“An unknown error has occurred: Server error 421” "Could not send your message. Error 421" 421 4.2.1 : (DYN:T1) http://postmaster.info.aol.com/errors/421dynt1.html 421 4.3.1 Out of disk space for temp file 421 4.3.2 All server ports are busy 421 Downstream server error 421 Fork failed 421 Greylisting enabled, please try later “An unknown error has occurred. Subject ‘Testing’, Account: ‘pop.charter.net’, Server: ‘mail.charter.net’, Protocol: SMTP, Server Response: ’421 Message rejected’, Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67”

Solution

Error Causes

Some common causes for this critical Outlook error are:

• PST storage size exceeds 2GB file size
• Improper ISP settings
• Slow internet connection
• PST file corruption
• Trojan attack and viral infection

This is a critical Outlook error that should be resolved timely. If you delay, it may cause you a great deal of inconvenience. The error code 421 hampers your ability to access your email account, send and receive emails, add new contacts, view emails, calendar entries, and journals. In other words, it just brings your email activities to a standstill locking you out of the account.

Further Information and Manual Repair

To resolve this error code on your system, you don’t always have to hire a professional or call the network personnel to do the job. It may be a critical error but the good news is that it is quite easy to fix. Even if you don’t have technical expertise, you can still repair it. Here are some of the best methods to repair this issue on your system:

1. Change the Server Settings to its Maximum Limit

Try changing your server settings. Here set the inbound connections limit at the maximum limit.

• To do this, open the Microsoft Exchange Server Administrator utility. The access path of this utility will vary depending on the installation procedure used to set up Exchange Server.
• Once you open the MS Exchange Server Administrator utility, click the ‘Connections’ icon in the left side navigation pane. Now double click the internet mail service icon in the right side pane. As you click it, the Properties window will open.
• Now click the ‘Connections’ tab in the Properties window and then click the ‘Advanced’ button. This will open the configuration window.
• Here reset the number for ‘Maximum Number of Inbound Connections’ to a high number, its maximum limit. After changing the settings, close all open Exchange Server Administrator program windows to successfully complete the process.

After the process is complete, try accessing your Outlook email account again; if it works, then that’s great the error 421 is resolved. However, if it doesn’t, then the problem could be related to viral infection.

2. Download a PST Repair Tool

If the cause of the error is PST files corruption, then not only will you be locked out of your email account, you are also at risk of losing all the data stored in your email account. However, the best way to resolve the error and ensure full data recovery is to download a reliable PST repair tool. By running a PST repair tool on your system, you can resolve the error 421 right away. It recovers your data, repairs corrupt and damaged PST files.

3. Scan Your PC with Restoro.

If viral infection and Trojans are causing the error 421 to pop up on your system, then it is recommended to download and scan your PC with Restoro. This is an advanced, intuitive, and user-friendly PC fixer. It is not just an antivirus but also a system optimizer and a registry cleaner. Unlike common antivirus software that only removes viruses and simultaneously slows down the system’s speed, Restoro removes all types of malicious software on your PC including malware, spyware, Trojans, and viruses, and also boosts the speed of your PC significantly. It is safe, easy to operate, and a quick fixer. It is compatible with all Windows versions. Click here to download Restoro and resolve error 421 today!

Hello and welcome to errortools another tutorial which aims to make your computer life easier and more relaxed. This time we will be talking about how to switch sound output devices in Windows 10 in a matter of seconds between Headphones and external speakers, Between 2 different speakers, or any other audio output device in general. Windows 10 with its updates has really gone from OK to one of the greats, little hacks and shortcuts which every update has introduced have really made life easier. Now, your typical switching from one audio output device to another can be accomplished with your standard go to settings, go to devices, choose audio, pick one which you prefer and click on OK. This way altho nothing wrong with it is a little slow and if you need to switch your output devices several times in a single day often it can be time-consuming as well. Lucky for you we have a quick solution for you.

Switching guide

All right, now in order to be able to actually switch between your audio output devices make sure that all of them are working and that they are plugged in. For example, make sure that both of your headphones and speakers are turned ON and plugged in. Once you have confirmed that everything is in working order:

1. Click with a left mouse button on a speaker icon located on the right part of your taskbar next to the clock
2. Click on the small up arrow on the right next to your current audio output device.
3. The list will open, choose, and left click with the mouse button on your choice.

And that's it, you have changed your default audio output device in a matter of seconds. The good thing about this method is that Windows will remember output audio levels for each device.

Potential issue

If by any chance when switching your audio devices this way freezes volume control just go to the task manager and restart Windows Explorer. To restart Windows explorer:

1. Press CTRL + ESC to open task manager
2. Right-click on Windows Explorer
3. Left-click on restart