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According to Microsoft, DATA_BUS_ERROR indicates that a parity error in system memory has been detected. As this is likely a memory issue, running the memory diagnostic tool should be the first troubleshooting step.

As discussed above, a parity error in the system memory triggers a bug check with stop code DATA_BUS_ERROR. Before you get into the details about parity error, you first need to know about parity.

A parity bit is a single bit embedded into a set of binary values to determine whether the number of 1s is even or odd. This is done as an error detection technique when the PC transfers data. 

If the system detects an error in the parity bit when transferring critical data, you will likely get a DATA_BUS_ERROR bug check.

Defective RAM stick

Corrupted system files

Outdated Drivers

Incompatible hardware

Faulty Graphics card

Bad sectors on a hard drive

Based on the causes listed above, we have gathered a few solutions that might fix the issue with related components. This, by theory, should fix the DATA_BUS_ERROR BSOD. Since this is a memory issue, we first check the integrity of the system memory.

Memory Diagnostic Tool thoroughly scans your system’s physical memory for any issues. If the system detects any issues with the memory, this is probably what’s causing the blue screen. To run Windows Memory Diagnostic Tool,

The PC will now restart, running several memory tests. The scan will simultaneously give you a report of any issues. Besides this, you can also use Event Viewer to get a scan report.

If the Event Viewer reports any error in system memory, you can check the faulty memory by removing it from the PC. However, this will only work if your PC uses more than one memory stick.

To remove RAM from the PC,

If the PC works smoothly without any issues, there is a high chance that the RAM stick you removed is the faulty one. However, if the issue still runs into BSOD, switch the RAM stick and check again.

If your PC uses one RAM stick, you need a fresh RAM stick to check if your current RAM is faulty.

Sometimes, your system’s RAM may not be causing the DATA_BUS_ERROR. If that’s the case for you, we recommend you check the Event Viewer to determine the exact cause of the issue.

Event Viewer keeps a record of everything that currently happens in the system. Keeping this in mind, you can check events occurring near the BSOD to determine the exact cause of the issue. To check the BSOD event from the event viewer,

Note the date and time of a particular Bugcheck event and check events with the same date and time in the Application, Security, Setup, and Forwarded Events event logs. By doing this, you may be able to determine what exactly caused the issue.

Just like how Windows Diagnostic tool scans a system’s RAM, the Check Disk command scans the storage device. This utility scans the drive for corrupted sectors and tries to recover data from these damaged sectors. 

If any of the OS files are located in the corrupted sector, the system cannot read these files. This may result in the blue screen error. Follow the steps below to check a drive containing OS for the bad sector.

/f fixes any errors on the drive.

/r locates and recovers data on bad sectors.

Although overclocking gives your system a performance boost, it may make it unstable. One overclock settings that increases your system’s performance is the XMP (eXtreme Memory Profile). XMP settings in your BIOS overclocks your RAM speed. Since the BSOD occurs due to issues in the memory, enabling XMP may be whats triggering it.

Not only this, the error may even be triggered due to other overclocked components like the GPU or the CPU. To check if the BSOD error is due to overclocking, we recommend resetting BIOS to disable all overclock settings.

Fault in physical memory is not the only reason that causes DATA_BUS_ERROR BSOD. You can also get the BSOD due to errors in the video memory. A simple reset of the graphics card may fix the issue if you use an integrated GPU. To reset your GPU, press Windows + Ctrl + Shift + B simultaneously. 

However, if your PC has a dedicated graphics card, you might need to perform some troubleshooting steps to check the graphics card. First, we recommend using the motherboard’s display port as output. If the PC works smoothly, the issue is likely with the graphics card. 

To fix this, try reseating the graphics card. Sometimes, overheated components may also cause the video memory issue, resulting in the BSOD. So, it is also highly recommended that you clean your graphics card.

System files are responsible for operating the entire OS, so you can assume that nothing good happens if these files are corrupted or deleted. If the right files get corrupted, it may even cause DATA_BUS_ERROR BSOD. 

In that case, running the SFC command should fix the issue. The System File Checker checks all your system files and repairs them. Follow the steps below to repair system files.

A driver is responsible for making the OS communicate with the device. Outdated drivers may face bugs and errors when communicating with newer and updated versions of Windows. Try updating your drivers to the latest version to check if it fixes the BSOD issue.

Before you update, you should disabled and re-enabled the device. By doing this, it resets the hardware to its default state.

We recommend updating all your device drivers, especially the display adapter driver, as it is responsible for communication between the OS and the GPU.

The PC may run into DATA_BUS_ERROR blue screen error after connecting new hardware to the system. Due to hardware and system incompatibility, the OS may not be able to access the device, even if both are connected. 

You can check if the hardware is compatible with the system in its user manual. If a component in your PC is not compatible with the motherboard, try updating the BIOS to see if it fixes the issue. 

The BSOD also occurs because of configuration issues for the hardware devices. Since these configurations are quite troublesome to trackdown and revert, the system restore feature provided by the Windows is a perfect fix to restore the configurations to previous working condition.

System restore replaces the current system files and configurations from an image snapshot taken at an earlier time.

The system restores process will begin now. Once the process completes, check if the PC still suffers from DATA_BUS_ERROR blue screen error.

You're reading How To Fix Data_Bus_Error Blue Screen Error On Windows?

How To Find Which Driver Is Causing The Blue Screen On Windows?

If you are seeing a Blue Screen error on your computer and want to find which driver is causing the BSOD on Windows, here are some ways to help you. There are multiple methods to find the faulty driver, and this guide explains all the possible ways you can use on your Windows 11/10 computer.

How to find which Driver is causing the Blue Screen on Windows

To find out the Device Driver that is causing the Blue Screen of Death on your Windows 11/10 computers, you can follow any one of these methods depending on the circumstances:

Check What failed in the Blue Screen

Use Driver Verifier Manager

Use File Signature Verification Tool

Use DirectX Diagnostic Tool

Check Minidump file

Use BlueScreenView to see BSOD logs

To learn more about these steps, continue reading.

1] Check What failed in the Blue Screen

It is probably the easiest way to find which driver is causing the Blue Screen error on your Windows computer. When you get the blue screen error, it displays the Stop Error Code, and failed driver name. You need to check the What failed section, which is visible at the bottom of your screen. It will show the name of the device driver that failed and caused the BSOD. The names could be chúng tôi chúng tôi chúng tôi chúng tôi chúng tôi chúng tôi etc.

Once you have this name, search on this site or on the web to find posts that may help you.

Basically, you will need to either update that driver or roll back the driver if you recently updated your driver and see if that helps you.

2] Use Driver Verifier Manager

You can use the Driver Verifier Manager on your computer to find the problematic driver on your Windows PC. Whether it is a newly installed or an existing driver, you can find the faulty one.

The tool allows you to verify any category of drivers to verify:

Unsigned drivers

Drivers built for older versions of Windows

All drivers

Select specified drivers only.

Unsigned drivers are usually suspect and this tool can not only help you identify failed unsigned drives but other signed drivers as well.

3] Use File Signature Verification Tool

The built-in File Signature Verification Tool is yet another utility you can use to find the problematic driver on your PC. It will help you identify Unsigned & Digitally Signed Drivers.

4] Use DirectX Diagnostic Tool

The DirectX Diagnostic Tool is designed to help you troubleshoot DirectX-related issues. If you recently installed a driver for making your games smoother and started getting the Blue Screen error after that, you can use the DirectX Diagnostic Tool. If the Diagnostic Tool flags an unsigned driver, updating the driver might solve your problem. You can typically find the latest driver for your hardware on the support section of the manufacturer’s website. Make sure you have the 64-bit driver for your 64-bit PC and the driver version is compatible. You may have to check your hardware configuration to figure this out.

Read: Bluescreen after installing Drivers in Windows

5] Check Minidump file

When you get BSOD on Windows PC, a Minidump file gets saved on your computer to store the information or details. The more your computer gets stopped unexpectedly, the more number of minidump files get saved. Therefore, you can follow this path to find the Minidump files:


You may find some files named like – chúng tôi etc.

Read: How to open and read Small Memory Dump (DMP) files

6] Use BlueScreenView to see BSOD logs

If you do not understand the Minidump files, you can use free Crash Dump Analyzer software like BlueScreenView on your computer. This free utility helps you give all the information regarding the BSOD, including the driver’s name responsible for the error. Therefore, you can use this app to find the faulty driver’s name.

Read: Understand and Troubleshoot common Windows Blue Screen of Death

How do I find out what driver is causing my blue screen?

To find out which driver is causing a blue screen error on your computer, you can use the aforementioned guides. For example, you can find the Driver Verifier Manager, File Signature Verification Tool, DirectX Diagnostic Tool, etc. Apart from that, you can find the What failed section in the Blue Screen.

TIP: Analyze Windows Memory Dump .dmp files with WhoCrashed

Can bad drivers cause blue screen?

Yes, bad drivers can cause a blue screen on your computer. In case you want to find which driver is causing a blue screen error or BSOD on your PC, you can follow this article. Here are some of the best working solutions you can use to find and fix the BSOD on Windows 11/10 PC.

Related: Microsoft Online Blue Screen Troubleshooter for Windows.

How To Fix Bitlocker Error 0X80072F9A On Windows 11.

If you are trying to enable BitLocker and set up a new device with encryption on Windows 10 or 11 but are getting the following error message: A problem occurred during the BitLocker setup. You may need to restart BitLocker setup to continue. Error code 0x80072f9a. This article will take you through several different things you can do to fix the problem and get BitLocker working correctly again.

Related: How to stop the Print Screen Key from opening the Snipping Tool on Windows 11.

BitLocker is a built-in encryption feature in Microsoft Windows operating systems that allows you to encrypt entire volumes or drives to protect the data they contain. By encrypting the data, it makes it harder for unauthorized individuals to access sensitive information on the drive, even if the drive falls into their hands.

While BitLocker is one of Windows most reliable features there are still a few minor issues that you may come across while using it. These usually occur when trying to enable or disable it. Error A problem occurred during the BitLocker setup. You may need to restart BitLocker setup to continue. Error code 0x80072f9a for example

Before you start any of the steps shown below try disabling any third-party antivirus software installed on your device as this can interrupt BitLocker and cause it to malfunction. Once you have done this check to see if everything is working. If it is, you can wrap this guide up here.

Verify BitLocker Group Policy Settings

Check the Group Policy Settings of BitLocker to ensure they’re configured correctly. Misconfigured settings can cause the BitLocker Error Code 0x80072f9a to occur.

Press Windows + R to open Run.

Type “gpedit.msc” and hit Enter.

Here, you’ll see a list of policy settings; configure them as required.

Run System File Checker

Outdated or corrupted system files can also cause the BitLocker Error Code 0x80072f9a to occur. Run the system file checker to scan and fix these.

Open an elevated Command Prompt.

Type “sfc/scannow” and hit Enter.

Wait for the scan to complete, restart your device, and see if the error is fixed.

Re-register the BitLocker WMI (win32_encryptablevolume) class

BitLocker may malfunction if the BitLocker WMI class (win32_encryptablevolume) is not registered or is missing registration. Re-register the BitLocker WMI class to fix it.

Open an elevated Command Prompt.

Type “mofcomp.exe c:windowssystem32wbemwin32_encryptablevolume.mof” and hit Enter.

If the command runs successfully, the following message will appear: “Microsoft (R) MOF Compiler Version 6.1.7600.16385 Copyright (c) Microsoft Corp. 1997-2006. All rights reserved. Parsing MOF file: win32_encryptablevolume.mof MOF file has been successfully parsed Storing data in the repository… Done!”

Close Command Prompt, restart your device and see if BitLocker Error Code 0x80072f9a is fixed.

Clear the SSL state

The BitLocker error 0x80072f9a can also be caused by problems with server certificate validation. In such cases, clearing the SSL state can help your computer refresh its cache of SSL certificates and potentially resolve the issue.

Disable and re-enable BitLocker

Try disabling and then re-enabling BitLocker on your device.

This process may help fix temporary bugs and errors.

Open an elevated Command Prompt. You can do this by pressing the Windows key + X and selecting “Command Prompt (Admin)” from the menu.

To disable BitLocker, type the following command and hit Enter:

manage-bde -off C:

Wait for the decryption process to complete.

To enable BitLocker again, run the following command:

manage-bde -on C:

Follow the prompts to set up BitLocker again, including choosing a new password or recovery key if necessary.

Note that disabling BitLocker will decrypt the drive, so make sure to back up your data before doing so. Re-enabling BitLocker will then re-encrypt the drive with a new encryption key.

How To Fix Error Code 0X80070490 On Windows 11

How to Fix Error Code 0x80070490 on Windows 11 [Easy Steps]




Many users have been unable to upgrade to the latest iteration and receive the error code 0x80070490 when installing the Windows 11 update.

It could be due to corrupt system files, issues with the Windows Update Components, or a conflicting third-party app.

To fix the error, restart the computer, run the built-in troubleshooter, perform DISM and SFC scan, amongst other methods here.

Though you shouldn’t normally come across any, many have reported encountering update errors. And with the option to upgrade to the latest iteration available via Windows Update, the error code 0x80070490 while installing Windows 11 can cause some trouble.

Unlike most update errors, this wouldn’t just prevent you from installing the latest version but basically upgrading to the latest iteration, i.e, Windows 11.

Though the error code 0x80070490 can also be encountered while installing apps in Windows 11, or even when running them, this guide will particularly focus on the update Windows 10 to 11 error 0x80070490 part.

Why do I see the error code 0x80070490 while installing Windows 11?

As is the case with other similar errors, this too can be caused by corrupt system files, third-party antiviruses preventing the upgrade, or a minor bug with the OS.

Other than that, it could also have to do with corrupt Windows Update Components, since these are critical for installing updates, and issues with them can lead to 0x80070490 error code while installing Windows 11.

Whatever the underlying cause in your case, the methods listed below should eliminate the error. Just follow them in the listed sequence for quick troubleshooting.

How can I fix the error code 0x80070490 when upgrading to Windows 11? 1. Use a dedicated repair tool

While you could go around manually troubleshooting the error, there is a simpler and quicker alternative, use a dedicated repair tool. We recommend Fortect since it’s one of the best and helps eliminates the maximum errors, including the ones with Windows Update.

Other than that, it also scans for malware infection and after removing it, repairs the damage caused by the malware. In case you are missing critical DLL files and unable to run a program, Fortect comes to your rescue by automatically replacing these.

Be it any issue with the PC, this tool is your full-time companion and will get you the best system performance coupled with the least errors.

⇒ Get Fortect

2. Restart the PC

Most windows update errors including error code 0x80070490 when installing Windows 11 can be fixed with a simple restart. If it’s a minor bug, restarting the computer would reboot the OS and eliminate it right away.

Most errors can be simply fixed by running a dedicated built-in troubleshooter, be it with the OS or an external device. In this case, the Windows Update troubleshooter should come to your rescue.

If you still encounter the error code 0x80070490 while upgrading to Windows 11, head to the next method.

3. Verify that the critical services are running

After you are done making the changes, restart the computer for these to come into effect, and check if the error code 0x80070490 encountered while installing Windows 11 is fixed.

4. Perform DISM and SFC scan

Expert tip:

The SFC (System File Checker) scan is used to identify corrupt system files and if any are found, these are replaced with their cached copy stored on the system.

Once the two scans are run and the computer restarted, check if you still encounter the error code 0x80070490 while installing the Windows 11 update.

5. Uninstall third-party antivirus

Certain third-party antiviruses are known to block updates and might lead to the error code 0x80070490 when upgrading to Windows 11. If you have any of these installed, remove them and then try to install the Windows 11 update.

10. The penultimate step is to reset Winsock and executing the following command would do it.netsh winsock reset

11. Now, all you have to do is restart the BITS and Windows Update service that you stopped earlier. Execute the following commands for start bits net start wuauserv

Issues with the Windows Update Components can often lead to the 0x80070490 error code when installing the update for Windows 11. Resetting the components should fix the problem.

If this method too doesn’t work, try the next one.

7. Manually install Windows 11

The last option with you, and one that should work for all, is to manually install the latest iteration. Here too, there are a couple of ways to make the upgrade. The simplest one is to upgrade to Windows 11 using the installation assistant.

No matter what lead to the 0x80070490 error code while installing the Windows 11 update, you can always make the upgrade with the methods listed here.

Also, find out how to fix the 0x800f0989 error code, another error that is encountered when upgrading to Windows 11 from the previous iteration through Windows Update.

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How To Fix Error Code 0X8007139F On Windows 11/10

If you’re a Windows 10 or Windows 11 user, you may have seen Error Code 0x8007139f. Now, this error code can be seen for Windows Update, Mail app, Activation, Microsoft account, Windows Defender, Xbox gaming, or when using a PIN. Let us examine each of these scenarios.

Windows Update error 0x8007139f

You may receive Windows update error code 0x8007139f while trying to install updates on your device. This post offers the most suitable solutions to successfully resolve this issue. You might encounter this error due to one or more but not limited to the following known causes-

System File corruption.

Windows Update glitch.

3rd party security software interference

If you’re faced with this Windows Update error 0x8007139f issue, you can try our recommended solutions in the order presented below to resolve the issue.

Run Windows Update Troubleshooter

Run DISM scan

Disable/Uninstall 3rd party security software (if applicable)

Reset Windows Update component

Manually install the update

Let’s take a look at the description of the process involved concerning each of the listed solutions.

1] Run Windows Update Troubleshooter

As with most Windows update errors that you might encounter on your Windows 10/11 device, it’s recommended to first run the inbuilt Windows Update Troubleshooter and see if that helps to resolve the Windows Update error 0x8007139f issue.

2] Run DISM scan

As this could be a case of corrupted Windows update system files, this solution requires you to use the DISM tool, native to the Windows operating system, to fix corrupted Windows update system files.

Try the next solution if this didn’t work for you.

3] Disable/Uninstall 3rd party security software (if applicable)

Firewall and antivirus are important for your system safety, but sometimes these programs can interfere with the proper functioning of your Windows PC.

This solution requires you to disable your AV software and try running Windows update again. If the error at hand persists, you can remove the third-party antivirus programs from your PC using the dedicated removal tool to remove all files associated with your antivirus program.

If removing the antivirus fixes this error, you can now install the same antivirus again, or you can switch to an alternative AV software or better still stick to Windows OS native AV program – Windows Defender.

4] Reset Windows Update component

In this solution, you can use the Reset Windows Update Agent Tool and see if it helps you. You can reset Windows Update Client using this PowerShell script. Besides these two automated tools, if you want, you can manually reset each Windows Update components to default.

5] Manually install the update

This solution entails you manually download from the Microsoft Update Catalog, the update that is failing to install and consequently triggering the error in question and then install the update on your Windows 10/11 PC.

Also, Windows update can be installed via several other methods such as using the Update Assistant or Media Creation Tool. For major updates like the Feature Update, you can manually update to it using the two mentioned tools.

Windows Mail app Error Code 0x8007139f

This post will help you fix Windows Mail app error code 0x8007139f.

Microsoft Account Error Code 0x8007139f

To fix Microsoft Account Error Code on Windows PC

Log out of your Windows account

Log in with a Local Account

Log in again with a Microsoft account into your PC.

This should fix the issue.

Error Code 0x8007139f when using a PIN

This post will help you fix 0x8007139f PIN error on Windows 10.

Windows Defender Error Code 0x8007139f

To fix Windows Defender Error Code 0x8007139f, follow these suggestions-

Restart Windows Defender Services

Use our freeware FixWin to reset Windows Defender to default settings.

Run the System File Checker tool

Run DISM to repair system image.

To check Windows Defender Services, open Windows Services Manager and locate the following four Services:

Windows Defender Antivirus Service

Windows Defender Antivirus Network Inspection Service

Windows Defender Advanced Threat Protection Service

Windows Defender Firewall.

Windows Activation Error Code 0x8007139f

To fix Windows Activation Error Code 0x8007139f:

Run the Windows Activation Troubleshooter and see if it help you.

Advanced users may want to see how to troubleshoot Windows Activation states.

Error Code 0x8007139f while gaming on Xbox or Windows device

This post will help you Error 0x8007139F when you install, update, launch a game in Windows or Xbox.

Hope something helps!

How To Fix Mail App Error 0X8007042E On Windows 11.

If you are using the Mail app on Windows 11 and are having issues with error. This article will show you several different things you can do to solve the problem and get the Mail app on Windows 11 working again. Keep in mind you may have to work through more than one solution in order to get things working again.

Related: How to fix Davinci Resolve error: The Fusion Composition on the current frame or clip could not be processed successfully.

Windows 11 Mail app error 0x8007042E is one of the most common of these issues and will prevent users from fully utilizing the app and often occurs when experiencing synchronization problems with email accounts. Interestingly enough you may also get the exact same error message from the Microsoft Store or other Microsoft Store apps. The good news is that there are a range of different steps you can take to resolve the problem so follow along as we guide you through each of them.

Use the Windows Store Apps Troubleshooter

Open the Windows search and type “troubleshoot.”

Select “Other troubleshooters/Additional troubleshooters.”

Choose “Windows Store App.”

Wait for the scan to complete and implement any recommended changes.

Install all available Windows updates

Open the Windows search and type “Updates.”

Select “Check for updates.”

Install any available updates, including optional ones.

Restart your PC after all updates have been downloaded and installed.

Perform Disk Cleanup

Open the Windows search and type “Disk Cleanup.”

Mark the areas you want to delete, such as Windows update files, Setup log files, Recycle bin, and Temporary files.

Run SFC and DISM to fix corrupted files

Open the Windows search and type “cmd.”

Execute the following commands one by one, pressing Enter after each:

sfc /scannow

DISM /Online /Cleanup-Image /CheckHealth

DISM /Online /Cleanup-Image /ScanHealth

DISM /Online /Cleanup-Image /RestoreHealth

Restart your PC once the process completes.

Repair the Mail and Calendar app

Reinstall Mail and Calendar apps via PowerShell

Open the Windows search and type “PowerShell.”

Copy and paste the following command line into PowerShell and press Enter:

Once the apps are uninstalled, visit the Microsoft Store to reinstall them.

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