A Quick Guide to Fixing Connapi.dll Error Code

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

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

You may have to re-register the ntdll.dll file using the regsvr32.exe before you can successfully install the program and fix ntdll.dll file crash error. The Regsvr32 tool is a command-line utility that can be used to register and un-register the OLE controls like DLL and ActiveX (OCX) control in the Windows operating system. Follow the steps below to use it.

• Open Command Prompt as admin from the WinX menu.
• Next, type the following commands in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
  • exe /u ntdll.dll
  • exe ntdll.dll
• 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 2 – Disable problematic Internet Explorer add-ons

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

Option 3 – Try running the DISM tool

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

• 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 DCOM error is now fixed.

Option 4 – Try to run the Program Compatibility Troubleshooter

You might also want to run the Program Compatibility Troubleshooter. This built-in troubleshooter is available in the Windows Update & Security section. From there, select Troubleshoot. This will find a list of programs for you and since you have already downloaded the driver files, just click on Not Listed located at the top of the program list. After that, browse and select the driver files and then let the program do its job.

Option 5 – 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 6 – Try scanning your computer using Windows Defender

The ntdll.dll file crash error might also be infected with malware or virus and to eliminate it, you have to scan your computer using security programs like Windows Defender.

• Tap the Win + I keys to open Update & Security.
• Then click on the Windows Security option and open Windows Defender Security Center.
• Next, click on Virus & threat protection > Run a new advanced scan.
• Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.

In Windows 11 if you do not own a mouse or it has suddenly malfunctioned you can still move your arrow on-screen using the numeric pad. In this guide, we will guide you on how to turn this option ON, follow this easy guide step by step.

1. Press ⊞ WINDOWS + I to open Windows settings
2. Click on Accessibility on left
3. Scroll down to reach the interaction section on the right and click on Mouse
4. Click on Switch beside Mouse keys under accessibility options
5. Set your preferences
6. Close settings

Settings will be as always automatically applied.

What is a QR Code

QR code or if you want to be more technical Quick Response code is a two-dimensional code made of square dots creating a pattern that can be scanned via QR scanner and then interpreted. Usually, they are present on product packaging, on business cards, websites, etc. When you decode a QR code you can get a link to a website or link to a file or whatever, you can get text, image, email, contact information, etc.

QR Code Desktop Reader & Generator sample code

How to decode a QR Code? You can scan it with your mobile devices like iPhone, iPad, Android or Blackberry equipped with additional software for scanning QR Codes. You might want to check out tools like Barcode Scanner or Red Laser. If you don’t have a mobile device or you need to scan a barcode on your PC, simply use CodeTwo QR Code Desktop Reader & Generator.

How this program works

QR Code reading

CodeTwo QR Code Desktop Reader & Generator is a free tool that will let you quickly scan any QR Code from your screen – be it a part of the website, email, banner, or document. Simply run the program and hit From the screen on the top menu. Your standard mouse cursor will change into a cross to help you make a selection on your screen. Simply select an area with a QR Code and the program will automatically scan it. You can scan QR codes from websites, documents, movie files – you name it. You can also select an image file that contains a QR Code and the program will locate it automatically and decode it. To do that, simply click From file on the top menu of the program and select the desired image from your hard drive. If you have a file copied to your clipboard, or if you make a screenshot of a QR Code, QR Code Desktop Reader & Generator will let you decode those QR codes in one click. Just click From clipboard and the program will automatically locate and decode the QR code for you. That is not all, you can also use your camera to scan QR codes. If you have more than one camera, the program will let you choose which one to use. To use this option, simply click From webcam, and you will be able to scan QR codes with your recording device.

QR Code generation

• CodeTwo QR Code Desktop Reader & Generator also acts as a QR code generator. Creating QR codes is as easy as reading them. Here is how to generate a QR code:
• In the top menu, click Generate mode on and enter the text you want to translate into QR Code
• Choose if you want to copy it to the clipboard or save it in a file. The QR Code will be scaled automatically, but you can resize it in the Size settings tab.
• The resulting QR code can be used however you like. To name just a few options, you can:
• Upload it to your blog/website which is especially useful for mobile users.
• Print it on a poster, providing easily accessible links with more information on your event.
• Send it in newsletters, or include it in your email signature.

QR Codes in email signatures

Inserting QR codes in email signatures lets mobile users quickly grab your contact details, or provides them with links so that they can get more information on your company or topic you were discussing. You can also provide your recipients with a link to QR Code Desktop Reader & Generator. This will help them easily decode QR codes when they open your email on a PC.

QR code

If you want to include a QR code automatically in email signatures throughout a whole organization, try CodeTwo central email signature management solution. It is a very useful tool, which enables you to unify email signatures on Exchange Server and Office 365 (Microsoft 365).

Long working hours on a laptop can have some issues with laptop heating and thus slowing down. Today we will take a look at how can you prevent it from heating and keep it in a normal temperature range so it lasts longer and works better.

Close unnecessary programs or browser tabs

Usually, the main reason for high laptop temperature is the heavy and constant workload. Of course, the solution is very simple, turn off unnecessary browser tabs or applications running in the background, and less power will be needed for operation thus directly reducing workload and temperature.

Place it on a hard flat surface

Laptops generally have vents on the side and even under them, these vents, of course, are made so hot air is disposed of through them but if they are covered that will create issues. Placing computers on textiles, pillows, and legs can obstruct their venting holes and increase heat also since they are materials that are not taking heat away.

Your best practice should be placing the laptop onto a hard flat surface so air can flow freely and if you need to keep it in your lap there are lap desks made for this purpose.

Clean the laptop

With some good cleaning, the laptop can stop overheating, and generally, it will be cooler. Vents that has for ventilation can get clogged over large periods of time due to dust which is always present. Compressed air can be a quick easy solution to open the vents and redust it. Other methods include a compressor, vacuum, or brush in order to quickly remove any dust clogs. Taking it into service for complete redusting and paste change is also a great option.

Place it on the dedicated pad

There is some disagreement about using dedicated cooling pads for laptops, some say they are not effective at all, and some swear by them but from my experience good paired laptop and pad can indeed help with cooling it down. Usually, cooling pads will come with fans that will take away heat from the laptop itself reducing its overall heat.

Change your Windows power plan

If your laptop is constantly hot but you are not doing much with him check Windows power settings. There is a good chance it is set to run on a high-performance plan and if this is the case switch it back to a balanced power setting. Power plan like high performance will drain more power and more power will mean more heating. Of course, this will affect performance as well but for regular work that excludes some power gaming, video, and picture manipulations and other demanding tasks this power plan will work just fine.

Take control of the fans inside your laptop

Internal cooling is important and sometimes fans are not running to their full capacity so increasing their speed or changing their plan of work can cool down the computer nicely. Some laptops have fans controlling application already on them, especially gaming laptops but most of them do not. If your laptop does not have it, go to your laptop brand website and see if such an application exists for your model, if it does, download and install it but if there is no such application try general free ones like SpeedFan or Argus Monitor.

Reduce voltage of CPU and GPU

How more power means more heat, reducing the power that CPU and/or GPU take can be reduced inside BIOS by lowering voltage of these 2 components. First, go to BIOS and write down the voltage that is currently assigned to your CPU and/or GPU so you can bring it back if ever needed, also take note that reducing voltage and thus power will not affect negatively your components but increasing it thus overclocking can and will so be careful when bringing voltage back not to overdo it. You can always also reset your BIOS settings to bring them back to factory settings.

Do not use the laptop when charging it

When the laptop is placed on the charger in order to be charged and used at the same time, more power is drawn to it, and since the battery is taking electric charge instead of providing it more heat will be generated now since two different sources will be generating it, the battery itself and computer. When you really can not wait for the laptop to be charged, use it, but turn it off and wait to be fully charged if you can.

One of the popular tools that allow a user to offer or obtain remote assistance on a computer is the TeamViewer. It is available on all the major computer and mobile platforms which makes it a lot useful to every kind of user, even on the go. If you are one of the users who frequently use TeamViewer, then you must be familiar with this one sentence that states, “Initializing display parameters”. In common cases, this sentence will appear for a second and load the other user’s screen. However, some users reported that TeamViewer gets stuck on that stage and did not move ahead even a bit. If you experience the same problem, read on as this post will guide you in fixing this issue with TeamViewer on your Windows 10 computer. At the time of writing, the cause of this issue is still unclear. It could be due to the quality of internet connection, conflicts in process, misconfiguration of Remote Access, and many more. To fix this issue, you can try to update TeamViewer for both the users or have it reinstalled with Unattended Remote Access, or reconfigure the Remote Access. You can also try to kill any conflicting processes or optimize your internet connection. For more details, refer to the given options below.

Option 1 – Reboot your router

The first thing you can try to do to fix the error is to simply restart your router. All you need to do is reboot the router from its Admin panel or you can also turn it off manually and turn it back on after a couple of seconds so that it can completely reboot. Once you’re done, try accessing your server again and see if the error is now fixed.

Option 2 – Try to update TeamViewer on both users’ end

You might have to update the TeamViewer on both ends and to do that, you need to start the TeamViewer installer again. Once it is installed, run the program and click on the Help option in the Menu ribbon and then select the “Check for updates…” option. If an update is found, you will be notified within a couple of seconds through a pop-up mini window. From there, click on Update and then follow the next onscreen instructions that appear and choose your TeamViewer version to update.

Option 3 – Try reinstalling TeamViewer via the Unattended Remote Access

If the first two given options didn’t work, you might have to reinstall TeamViewer from the Windows 10 Settings app or Control Panel.

• Tap the Win + R keys to launch the Run utility and type “regedit” in the field and hit Enter to open the Registry Editor.
• Here, navigate to this registry key: Computer HKEY_LOCAL_MACHINE SOFTWARE Wow6432Node TeamViewer
• Next, look for the TeamViewer key and right-click on it, and select Delete.
• After that, restart your PC to apply the changes made and then start TeamViewer again, and then click on Connection > Open Management Console.
• Then sign in or sign up to get registered and select the Add new device radio button under Add > Add computer located on the top-right corner and then select the Download now option.
• Now follow the next onscreen instructions that appear to complete the installation and then check if it fixes the problem or not.

Option 4 – Try reconfiguring the Remote Access

You can also try to reconfigure Remote Access in case there is some misconfiguration that might have caused the problem with TeamViewer.

• On your Desktop, right-click on This PC and click on Properties.
• Next, go to the left side of the navigation panel and click on Remote Settings.
• From there, make sure that the “Allow Remote Assistance Connections to this computer” checkbox is checked under the Remote Assistance section.
• Once done, click on the Advanced button. This will open a new mini window where you’ll have to check the “Allow this computer to be controlled remotely” option under the Remote Control section.
• Then click on OK and see if it fixed the problem.

Option 5 – Try to kill any conflicting processes

• Tap the Ctrl + Shift + Esc key combination to open the Task Manager.
• Then navigate to the Processes tab and right-click on the BGInfo process.
• Now select the End Task option to kill its process and then start TeamViewer again and check if the problem is resolved.

Option 6 – Try to optimize the quality of connection

You need to take care of two things under this option – first, you have to disable the loading of the Wallpaper of the computer which is the one that you’re trying to access remotely. To do that, you have to select the Extras menu from the menu ribbon and then select Options. And under the Remote Control section, check the “Remove remote wallpaper” option. The next thing you have to do is to optimize the quality for the speed by selecting the “Optimize Speed” for the menu of Quality still under the Remote Control section.

Stop C00002lA Fatal System Error- What is it?

C00002lA Fatal System Error is a blue screen of death error that may occur when you start your Windows NT 4.0 based computer. This error causes the screen to turn blue and the system also shuts down. The stop C000021A error message is displayed in the following format:

Stop c000021a {Fatal System Error} The session manager initialization system process terminated unexpectedly with a status of 0xc0000017 (0x00000000, 0x0000000) The system has been shut down.

Error Causes

The stop C000021A error occurs when either Crsrss.exe or Winlogon.exe fails. When the Windows NT kernel identifies that either of these processes has failed, it stops and the error code stop C000021A appears on the computer screen. Here are some of the underlying causes for the stop C0000021A error:

• The incompatible third-party program
• Hard disk issues
• Service pack installation has failed
• Mismatched system files have been installed
• Bad and invalid registry keys

Further Information and Manual Repair

To resolve the stop C000021A Fatal System Error on your PC try the following solutions:

• Remove Incompatible Third Party Programs

If the error occurred after you recently installed a new program, then it is advisable to remove that program. The error occurs due to the incompatibility of the program. To remove the program go to the start menu and click on the control panel. Now click on Add/Remove Program tab and double click on the program name that you recently installed and remove it from the list. Once removed, not reboot your PC. Reinstall a compatible program and run it. It is most likely to resolve the issue. However, if the stop C000021A error still occurs, then it means the problem is critical. It is related to the registry.

• Repair and Restore the Registry

This procedure is slightly long and tricky. To try it, you need to be technically sound. Here’s what you have to do: first create a parallel installation of Windows NT. Start your PC to the parallel installation and then open the Registry Editor. On the Registry Editor’s Windows menu click HKEY_LOCAL_MACHINE on Local Machine and then click Load Hive. Now type the path %systemroot%system32configsystem into the System hive of the prior installation. Then click open. Here you will be prompted to enter the name of the key, type TEST. Note the setting for the current DWord value in the preceding registry key. This is 0x1 and is denoted by CURRENT:Reg_Dword: 0x1. This value indicated that the Current Control Set for your original Windows NT installation corresponds to ControlSet001 in this window. Now if the value is 2, it indicated that the Current Control Set corresponds to ControlSet002. Now locate the following registry key: HKEY_LOCAL_MACHINETESTControlSetXXXControlSession Manager. XXX is the Current Control Set Value. And delete any pending file rename operation entries. Then click TEST hive and then click Unload Hive. After that again repeat the process, open the registry menu and click load hive, here type the path %systemroot%system32configSoftware to the Software hive of the prior installation and then click open. Now you type TEST 2 when you are prompted for the name of the key. Remove any pending file rename operations entries in the following registry keys: HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnce HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnceEx Now click TEST2 hive and then click unload hive. Quit the Registry Editor and then restart your original installation. This will resolve the stop C000021A error.

Device drivers are needed in order for the hardware and software to communicate in an operating system. Some of these drivers are digitally signed. These kinds of drivers are drivers that are signed by their issuing authority in a way that the end-user or any third party won’t be able to modify them. And there are times when you encounter an error that says, “Windows requires a digitally signed driver” when you try to install or update device drivers. Driver Signing is the process of associating a digital signature with a driver package. Digital signatures are used in Windows device installations to verify the identity of the vendor providing the driver packages as well as to verify the integrity of the driver packages. All the drivers you usually install on your PC from Windows Update, Original Equipment Manufacturers, or some other third-party driver download software and so on must be verified digitally by Microsoft through the digital signature. A digital signature is an electronic security mark that verifies the publisher for the driver and all the relevant information related to it. That’s why Windows won’t run a driver if it isn’t certified by Microsoft, be it a 32-bit or 64-bit system – this is called the Driver Signature Enforcement. The only Kernel-mode drivers that Windows 10 will load are the ones that are digitally signed by the Dev Portal. However, the changes only affect the new installations of the operating system with Secure Boot on while the non-upgraded fresh installations would require drivers that are signed by Microsoft. The “Windows requires a digitally signed driver” error indicates that the driver you are trying to update or install hasn’t been signed digitally by the issuing authority, preventing you from installing or updating it. To resolve this issue, you can try to update the drivers directly from the manufacturer’s site. You could also disable driver signing via Group Policy Editor.

Option 1 – Update the device drivers directly from the manufacturer’s site

The reason why you’re getting the “Windows requires a digitally signed driver” error in the first place is that you might have downloaded the drivers from external media. It could also be that the drivers didn’t update for some time now and the issuing authority changed its policies. Thus, you can try to update the drivers straight from the manufacturer’s website and install them. If this option didn’t work, then you’ll have to disable the driver signing or its recognition in Windows 10. Keep in mind that doing so is not advisable if you have to use the concerned driver.

Option 2 – Disable driver signing 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: User configuration > Administrative templates > System > Driver installation
• Next, double click on the “Code signing for device drivers” entry located on the right pane to open its properties where you’ll see the following description:

“This setting determines how the system responds when a user tries to install device driver files that are not digitally signed. It establishes the least secure response permitted on the systems of users in the group. Users can use the System in Control Panel to select a more secure setting, but when this setting is enabled, the system does not implement any setting less secure than the one the setting established. When you enable this setting, use the drop-down box to specify the desired response. “Ignore” directs the system to proceed with the installation even if it includes unsigned files. “Warn” notifies the user that files are not digitally signed and lets the user decide whether to stop or to proceed with the installation and whether to permit unsigned files to be installed. “Warn” is the default. “Block” directs the system to refuse to install unsigned files. As a result, the installation stops, and none of the files in the driver package are installed. To change driver file security without specifying a setting, use System in Control Panel. Right-click My Computer, click Properties, click the Hardware tab, and then click the Driver Signing button.”

• Now select the radio button for “Enabled” and select Ignore from the drop-down menu under “When Windows detects a driver file without a digital signature”.
• Then click on the Apply and OK buttons to save the changes made. This will get rid of the “Windows requires a digitally signed driver” error but take note that this will also make your system less secure.

Originally Microsoft has imagined its widgets menu as Microsoft-only widgets but it seems that they have changed their mind. Due to the latest leak, it seems that Microsoft will open the widgets menu to 3^rd party developers as well but at launch, it will be only official widgets. It was hinted that later widgets menu will be open to developers who want to bring their own stuff into it. Distribution, date, and technology that will need to be used in order to create your widget have not been discussed nor leaked at a given time but in some way, I am very glad that at least some customization will be in Windows 11. It is funny and amusing how some things that were in Windows Vista are getting back like glass design, round corners, and widgets. Let’s just hope Windows 11 will be a better Windows than Vista was.

The File Explorer in Windows 10 provides several ways to organize the contents of folders and files in the system. Windows users can utilize some efficient styles to view the contents of the file system as per the user’s requirement. A user may opt to display the file picture in large size thumbnails while the other one could opt to set the icons of folder and files in a small or medium size list. On the other hand, while setting up several styles for the folder and file icons, some Windows 10 users have experienced some unusual issues where there is the Black background showing up behind folder icons. They tried refreshing the File Explorer a couple of times but it didn’t help in fixing the problem and the black squares are still visible on some folder icons. The black squares behind the folder icons might look disturbing though it’s not really a big problem and is merely a graphical glitch that does not cause any damage or whatsoever to the content of the folder and files. The most likely cause of this glitch might have something to do with the corrupted system files or it could also be caused by outdated thumbnail caches. In addition, graphical glitches like this one could also occur if you are using out outdated graphics drivers. To fix this problem, you need to follow the options laid out below.

Option 1 – Try using the Disk Cleanup to remove Thumbnail files

The Disk Cleanup tool is one of the options you can try to fix the black squares behind the folder icons. Through this tool, you can delete all the Thumbnail files on your disk. To use it, refer to these steps:

• Open the Search bar and type “disk cleanup” in the field.
• After opening Disk Cleanup from the search results, then from the drop-down menu select the C: drive to clean up and click OK.
• Wait for the scanning process to complete. Once it’s done, select the files you want to delete.
• Ensure that you select the box labeled “Thumbnails” under the Files to Delete section then click on OK.
• After that, a confirmation box will appear, just click on Delete files to delete the files permanently.
• Restart your PC.

Option 2 – Try resetting the Thumbnail cache

You have the option to manually delete the Thumbnail Cache to resolve the black square background behind the folder icons issue. Follow the steps given below to reset the Thumbnail cache.

• Open the File Explorer.
• Next, navigate to the View tab and select the option with Hidden items to display all the hidden folders and files.
• Next, go to this path: C:Users<username>AppDataLocal
• In the given path, make sure that you put your actual username in the username field. Then look for a file named “IconCache.db”. Right-click on this file and click on Delete.
• After that, go to this path: C:Users<username>AppDataLocalMicrosoftWindowsExplorer
• From there, select all the files and delete them.

Note: If a prompt appears saying, “The files are in use and cannot be deleted”, simply select the “Do this for all current items” option and then click on Try Again. If you get an error message, click on Cancel to close the window and restart your computer.

Option 3 – Try updating or reinstalling the Graphics driver

• Tap the Win + R keys to open the Run dialog box and then type in devmgmt.msc and tap Enter or click OK to open the Device Manager.
• Expand the section for the outdated device drivers.
• And then select the outdated driver(s) and right-click on it/them.
• From the drop-down menu, select the Update Driver option if you wish to update the driver or select the Uninstall device if you want to uninstall the driver and then follow the on-screen instructions to install the latest version of the driver.
• Restart your PC after the installation to allow the system to reinstall the driver.

Typical use of file explorer will probably not need any kind of elevated privileges, but from time to time you might encounter some tasks that will require administrator rights in order to perform them. If this is the case you will need to run file explorer with these rights but inside Windows 11 that is somewhat hidden and not 1 click away. How this is the case we have decided to put a little tutorial on how to accomplish this very task and run file explorer with administrator privileges.

Open File Explorer via EXE file

1. Open File Explorer typically
2. Navigate to This PC > Windows (C:) > Windows
3. Locate file explorer application
4. Right-click on it and select Run as Administrator
5. Run File Explorer

A new instance of file explorer will pop with elevated administrator privileges.

Run it as an administrator using the Task Manager

1. Open the Task Manager ( CTRL + SHIFT + ESC )
2. Click on More details (at the bottom)
3. After the task manager expands click on the File tab
4. Click on Run New Task
5. Type in explorer.exe and check the box next to it that says Create this task with administrative privileges
6. Click on OK

File Explorer will now run as administrator.