Fix Windows Update Error 0x80240020

Code 0x800F0923 – What is it?

The Error Code 0x800F0923 is one that appears only when attempting to update from older versions of Microsoft Windows to Microsoft Windows 10. This error does not occur with every install and is believed to be the result of a driver incompatibility issue. It is unclear which specific drivers are having the compatibility issues, though it is widely believed that DuplexSecure's SPTD drivers are the ones at fault. When operating correctly, without errors, the update process should not take longer than 30 minutes. Common symptoms include:

• Error message window/pop-up during the install process, giving the Error Code 0x800F0923
• Inability to install and update from older versions of Microsoft Windows to version 10

Solution

Error Causes

There are various relevant factors associated with the error code 0x800F0923 incompatibility issue in Windows 10 installation/upgrade. These factors include but are not limited to:

• The Operating System (OS) upgrading does not support older hardware.
• Your computer’s specs did not meet the minimum requirements.
• Not enough hard disk space.
• The new software might lack software drivers for older hardware

Further Information and Manual Repair

Microsoft has recently released its Windows 10 operating system. While there are still a few kinks to be worked out, overall the reviews have been positive. As with any new Microsoft update, compatibility issues can arise. If you are unsure whether your current PC will be able to handle the new Windows 10, here is an easy way to check your system.

Method 1: Check if your computer is compatible

• Locate the “Get Windows 10” application icon in your notification tray (bottom right corner of your screen, white Windows logo).
• Right-click on this icon, then select the “check your upgrade status” option.
• Be prepared for the menu to take a few minutes to open.
• Click on the menu on the upper left-hand corner of this new dialog box. (It looks like three blue horizontal lines)
• Select “check your PC”
• After the system checks for compatibility, it will let you know whether or not your PC has the appropriate drivers, etc. (Keep in mind that this is not a foolproof method for checking compatibility status).

Method 2: Download or upgrade your drivers/software

If you have already attempted to update to Windows 10, and have received the Error Code 0x800F0923, this is the simplest way to solve the issue yourself.

1. Open the “Get Windows 10” application. 2. Open the menu in the upper left corner, looks like three blue lines. 3. Select “Check your PC”. 4. The system will tell you which drivers are incompatible. 5. Go to the Microsoft Support website to install and/or update the drivers that proved to be an issue. 6. Once the driver issue is corrected, retry the Windows 10 update.

Method 3: Create space on your computer

If your computer does not have sufficient space to accept the upgrade, you might want to clear up some space on your computer. Here’s how to do it. If you have not attempted to install Microsoft Windows 10 yet, it is a good idea to check your system's compatibility prior to installing. While it is not absolutely necessary, it will save time and frustration. Microsoft Support suggests contacting them directly if you are unable to solve your driver compatibility issues, or if the above do-it-yourself method is unsuccessful. To resolve this compatibility issue and get your upgrade going use a powerful and user-friendly tool to clean up the problem. Click here to download Restoro. Users should also be aware that those who choose to upgrade to Windows 10 have 30 days in which they may decide that they would rather use their old system. However, reverting back to the older system may not be a smooth process, and some data could be lost.

AVFoundationCF.dll is a type of Dynamic Link Library file. This DLL file is associated with AVFoundationCF and is developed by Apple Computer Inc. for Windows PC. This file functions similarly to any other DLL files. It comprises of small programs. This DLL file is typically needed to load and start the Apple iTunes utility. The inability to call this file or the files to load triggers the AVFoundationCF.dll error message on your system. The error message can be displayed in either of the formats on your PC:

“The program can’t start because AVFoundationCF.dll is missing from your computer. Try reinstalling the program to fix this problem.” "This application failed to start because avfoundationcf.dll was not found.” "Cannot find %COMMONFILES%AppleApple Application Supportavfoundationcf.dll." "Cannot start AVFoundationCF. A required component is missing: avfoundationcf.dll.” “Avfoundationcf.dll Access Violation." "Cannot register avfoundationcf.dll."

Solution

Error Causes

AVFoundationCF.dll error can occur due to numerous reasons. However, the most common reasons for this error code include:

• Viral infection
• Corrupt or invalid registry entries
• Apple Computer Inc. hardware failure such as bad hard drive
• Missing or deleted Avfoundationcf.dll file

It is recommended to resolve the error as soon as you experience it virtually because if the error code is related to viral infection on your system, it can expose your PC to privacy errors and data security risk. And if the error is triggered by registry issues, it can lead to serious threats like system crash, failure, and data loss. Therefore, the AVFoundationCF.dll error not only hampers your ability to access and start Apple iTunes program but it also puts your PC at serious risk.

Further Information and Manual Repair

To fix the error AVFoundationCF.dll on your PC, here are some of the best and easy to do solutions that you can try:

Check your Recycle Bin

Since dll files are shared files, there is a possibility that this file accidentally got deleted when you were uninstalling some other program on your system. If you experience missing AVFoundationCF dll file error message after performing any program on your PC, then chances are that it got deleted and maybe in your recycle bin. So, first, check your recycle bin and search for the dll file. If you find it, restore it to fix the error.

Update Device Driver

To resolve the issue, try performing a driver update. This can be done by downloading the latest drivers from the hardware manufacturer’s website. Now open Device Manager from the Control Panel and locate the hardware device that you want to update the driver for. Once you find the hardware you are updating the driver for, right-click on the hardware icon and choose properties. In the properties windows, click the driver tab. Now click the update driver button. To activate changes, restart your PC. To automatically update your computer's drivers when necessary, download and install DriverFIX.

Try Re-installing Apple iTunes Program

To do this, simply go to the control panel, select programs and then uninstall a program and then select iTunes.  Uninstall it and then repeat the same program and install the Apple iTunes program again on your PC by downloading the program from Apple’s official website.

Scan for Viruses

If the error still persists, then it is advisable to scan your PC for viruses. This can be easily done by running a powerful antivirus on your PC. However, please note anti-viruses are notorious for slowing down PC performance. So, may have to compromise on the speed of your system.

Clean and Repair the Registry

If the error is caused by invalid and corrupt registry entries and damaged Avfoundationcf dll file, then the best way to resolve is to download a powerful registry cleaner. We advise you to install Restoro on your PC. This is an advanced and a multi-functional PC Fixer integrated with multiple powerful utilities including a high functional registry cleaner, an antivirus and a system optimizer. The registry cleaning utility scans all the registry issues and removes all errors triggered by the registry immediately. It cleans the registry by wiping out all the unnecessary, obsolete and redundant files including invalid entries and bad registry keys. Furthermore, it also fixes the damaged and corrupt dll files including Avfoundationcf dll file. Thereby resolving the error right away. Furthermore, the antivirus deployed in this software scans for all types of malicious codes like viruses, Trojans, spyware, and malware and removes them. To ensure you don’t compromise on your PC performance, it is deployed with a system optimizer utility that boosts the speed of your computer dramatically. This tool is bug free, has a user-friendly interface and compatible with all Windows versions. Click here to download Restoro and resolve Avfoundationcf.dll error on your PC today!

A number of users have recently reported that they were going through an issue with their Bluetooth devices on their Windows 10 computers. This issue involves an error saying,

“Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52).”

If you are one of the users who encountered this kind of error on your Windows 10 computer, read on as this post will guide you on how you can fix this Bluetooth error. According to security experts, the key to fixing this error is to sign the Bluetooth A2DP files with the built-in tool, System File Checker. Apart from that, you could also run the Hardware and Devices troubleshooter or perform System Restore, as well as update or reinstall the concerned drivers. For more details, refer to each one of the options provided below.

Option 1 – Try to check Bluetooth-related services

In Services, there is a Bluetooth-related service that helps users use Bluetooth so if that particular service suddenly malfunctions for some reason, you will most likely get the “Windows was unable to connect with your Bluetooth network device” error message. That’s why you need to check Services and to do that, refer to these steps:

• Tap Win + R keys to open Run prompt and type in “services.msc” then tap Enter to open Services.
• Next, look for the Bluetooth Support Service and double click on it to open Properties.
• From there, verify if the Service status is showing “Running” or “Stopped”. If it’s the latter, you have to click the Start button.
• Lastly, check if the Startup type is set to Manual.

Option 2 – Try running System File Checker or SFC scan

You could also run System File Checker or SFC scan to fix the Bluetooth error. It is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with 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 to perform System Restore

You might also want to perform System Restore as the error might be caused by system modifications. Thus, to undo them, you can use System Restore. Run it using these steps:

• 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 4 – Try running the Hardware and Devices Troubleshooter

The next thing you can do to fix the problem is to run the Hardware and Devices troubleshooter. Although it won’t make much of a difference, there’s still a possibility that it could automatically fix the Bluetooth error. To use it, refer to these steps:

• The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
• After opening Settings, look for the Update and Security option and select it.
• From there, go to the Troubleshoot option located on the left-hand side of the list.
• Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
• After the system restarts, check if the problem’s now fixed. If not, refer to the next option given below.

Option 5 – Try to reinstall or update the Bluetooth driver

The issue might have something to do with the Bluetooth drivers. It could be that it is outdated and needs to be updated or that you recently updated it and since then you have trouble removing the Bluetooth devices and so to fix the issue, you can update, roll back or uninstall the Bluetooth drivers. How? Follow the steps below.

• Tap the Win + X keys to open the Device Manager.
• Next, look for the Bluetooth device and right-click on it.
• Select the option “Update driver”.
• After that, a new popup window will appear. In there, select the option, “Search automatically for updated driver software”.

Note: Checking the update may take a few minutes so you’ll have to wait until it finishes. If it is able to find an update, you must install it. And if you want to reinstall the Bluetooth driver, just select the “Uninstall driver” option and follow the next on-screen instructions that follow.

If you have encountered the “Windows Cannot Find a System Image on This Computer” error while you are trying to restore a system image, then read on as this post will guide you in resolving this problem. A system image is basically a backup of your whole data in the system. For instance, it can be the backup data of your hard disk or the whole hard disk itself, or one of the volumes. This is really useful in some cases like when you are not able to get back into your system for some reason or when your system has been corrupted. In such cases, you can utilize this feature and get going safe and sound. However, not all things go the way as expected like when you make a system image of a drive for instance, or use that backup to restore data and you suddenly encounter the “Windows Cannot Find a System Image on This Computer” error. This kind of error occurs due to a number of reasons but worry not for your data is safe and you can fix this error easily. This error is most likely triggered by changing the name of the “WindowsImageBackup” folder. Renaming this folder will certainly be an issue since it is the one that stores all your data. Aside from renaming the WindowsImageBackup folder, renaming the sub-folders can also cause this error which means that renaming the sub-folders of the WindowsImageBackup folder can trigger the error. To fix this error, here are some suggestions that might help:

Option 1 – Try putting the WindowsImageBackup folder in the Root directory

Windows will have issues finding the WindowsImageBackup folder if it isn’t in the root directory of the drive so if it is not there, the “Windows Cannot Find a System Image on This Computer” error will pop up. When a folder is in a root directory, it means that it shouldn’t be stored within a folder but in the main directory instead.  Thus, you need to put the WindowsImageBackup folder in the root directory to fix the error.

Option 2 – Don’t add any sub-folders in the WindowsImageBackup folder

Another cause of the error is when you add sub-folders in the WindowsImage Backup folder. Adding any sub-folders in this folder will only trigger the error so you should leave the folder as it is and you must not make any modifications to it. So if you have added sub-folders in it, make sure to remove them right away.

Option 3 – Make sure that there is one system image per USB drive

The error can also appear if you’ve stored multiple images inside a single USB drive as it could confuse Windows and will trigger the “Windows Cannot Find a System Image on This Computer” error. Note that storing system images of different volumes of your hard disk in a single USB will prevent you from restoring your data.

Option 4 – Try renaming the System Image folder

If you’ve just changed the name of the System Image folder after you store it on a USB stick or other external device, then it’s no wonder why you’re getting the “Windows Cannot Find a System Image on This Computer” error. Windows search for the default name, “WindowsImage Backup” folder when restoring your data so if it is not able to find it, it throws up this error instead. To fix the error, you need to change the folder back to its default name which is “WindowsImageBackup”.

Option 5 – Check the WindowsImageBackup sub-folders

As mentioned earlier, renaming sub-folders in the WindowsImageBackup folder can trigger the error so if you have renamed sub-folders in this folder, you need to change them back to their default names so that you can restore your data peacefully.

If you suddenly encounter Activation Error codes such as 0xC004E016, 0xC004F210, 0xC004F034, and 0xC004F00F on your Windows 10 computer, then they all point to the same issue – Invalid Product Key or Version mismatch. When you see any of the aforementioned error codes above, it indicates that you are either entering a wrong product key or you are using an incorrect ISO when installing it on your computer. In such cases, you may see either of the following error messages:

“You are running Windows 10 Pro, but you have a valid digital license for Windows 10 Home.” Or: “The specified product key is invalid or is unsupported by this version.”

If you got the error code 0xC004F00F then it means that you’ve entered a product key for the Enterprise edition of Windows to activate Windows 10 Pro or Windows 10 Home. It could be that you have a key from your work and you accidentally use it on your Home PC. If you got the error codes 0xC004E016, 0xC004F210, then it means that you have entered a product key that is meant for a different edition or version of Windows. On the other hand, if you got the error code 0xC004F034 instead, then it means that you have entered an invalid product key or a product key for a different Windows version. Whichever error codes you have, refer to the possible solutions given below to fix the Invalid Product Key or Version mismatch Activation Error in Windows 10.

Option 1 – Try running the Windows 10 Activation Troubleshooter

The first thing you can do to resolve this Activation error is to run the Windows 10 Activation Troubleshooter. To do so, follow these steps:

• Go to Settings and then select Activation.
• After that, click on the Windows Activation and then troubleshoot. This will help you address most of the commonly found activation issues in Windows devices.

Option 2 – Try purchasing a new license

There is an exception offered by Microsoft – if you are connected to a Microsoft account prior to the hardware change, then you can most certainly use the same license key to reactivate Windows 10 again. Microsoft calls this an “Exception path” which should be fixed easily by the Windows Activation Troubleshooter as pointed out earlier. However, if the Windows Activation Troubleshooter isn’t able to resolve the error you can try purchasing a new license. In such rate case, even if you do have a Microsoft account available on your Windows 10 computer, and if Windows was never activated, this solution will not work. And if you haven’t connected your Microsoft account with your Windows 10 computer prior to the major hardware change, then your only option left is to purchase a new license. For you to do that here are some steps you can follow.

• To purchase a new Windows license, the first thing you have to do is click on the Start button > Settings > Update & Security.
• From there, go to Activation and select the “Go to Microsoft Store” option.
• After receiving your new license, you need to go back to Update & Security then go to Activation and select the “Change product key” option.
• Now update your Windows 10 computer using the new key and it should automatically activate your computer.
• Next, you have to create a Microsoft account or connect to your existing local account to your online account.
• Once the system links the key and the account, you need not buy a new license in case something like this happens again.

Note: If you are an IT administrator, you need to keep in mind that there is a limit to the number of times you can reactivate Windows on your computer. Moreover, if you don’t see any option to reactivate the license, and it is a work computer, you need to contact your organization’s tech support.

Option 3 – Try activating Windows 10 via mobile phone

Activating Windows 10 can also be done using your phone. Just note that you have to call Microsoft to do so.

• In the Start Search box, type in “Slui 4” and tap Enter.
• Next, select your country and click on Next.
• Keep the window open and call the toll-free number of the country you’re from.
• Afterward, a confirmation ID should be given by the automated system which you must take a note of.
• Finally, in the box on the window, type in the confirmation ID and click on the Activate button. That should do it.

0x00000050 - What is it?

0x00000050 is a type of stop error code. It is also known as a Blue Screen of Death error. It usually occurs when you try to start your PC or load a program. It can also occur while running a program. This error may also pop up when you restart your PC after installing Windows XP Service Pack (SP1) on your computer. Unlike some PC related errors, 0x00000050 error code occurs without any warning. The stop 0x00000050 error is displayed in a blue screen and interrupts you from carrying your desired activities on your PC smoothly. This error message is prompted in the following format:

Stop 0X00000050 (parameter1, 0, parameter3, parameter4) PAGE_FAULT_IN_NONPAGED_AREA”

Solution

Error Causes

Stop 0x00000050 error code may pop up on your Windows computer screen due to multiple causes. The most common causes for this error code include:

• Poor PC maintenance
• Registry issues- Bad registry keys, invalid entries, corrupt and damaged registry
• Incompatible DLL files
• Corruption of system files- Pool corruption in the Srvnet.sys file
• Spyware and viruses
• Overheating of PC components
• The conflict between Windows XP SP1 and the display adapter drivers that are currently installed on your PC.

It is advisable to resolve 0x00000050 error code on your PC right away. BSOD errors are fatal errors and can pose serious threats to your PC. If not fixed timely it can lead to system crash, failure and valuable data loss.

Further Information and Manual Repair

To prevent data loss and system failure, there are some effective methods to resolve Stop 0x00000050 error code on your PC.  To implement these solutions on your PC, you don’t need to be a technical whiz or a computer programmer.

Method One

If the error cause is the conflict between Windows XP SP1 and the display adapter drivers then here’s what you need to do to resolve it:

1. First start Windows in safe mode. To do this, restart your computer and press F8. On the Windows Advanced Options Menu, use the arrow keys to select Safe Mode.
2. Once you select it press enter. Now use the arrow keys to select the operating system, press enter to start your computer in safe mode.
3. Go to Start, click Run and then type ’msinfo32’ in the open box and press OK to continue. Then under the System Summary option, expand Components and then click Display to note the information that corresponds to the INF File Item. And then simply quit the utility.
4. After that, go to the start menu again and then the My Computer and Properties option.
5. Press the Hardware Tab and then click the Device Manager tab. Go to the ‘Display Adapters’ option and press the option ‘Uninstall. To confirm action press OK.
6. Once again, go to the start menu and run and then type the following commands as illustrated below and after each command press enter.

• ren %systemroot%infINF file name from Step 5.inf *inf.old
• ren %systemroot%infINF file name from Step 5.pnf *pnf.old

This procedure may look pretty lengthy but it is worth it. Once you insert the commands, close all open windows and then reboot your system. Now download the latest drivers for your display adapter and install them. This will hopefully resolve the 0x00000050 error code on your system.

Method Two

Sometimes 0x00000050 BSOD error may occur due to temporary issues like overheating PC components. In times like these, all you need to do to fix the issue is to switch off your computer and allow the components to cool down. Try starting your PC after a few hours.

Method Three

If the issue is triggered by malware, then it is advisable to download a powerful antivirus. Scan your entire PC to detect and remove viruses affecting your PC and generating BSOD errors on your system.

Method Four

However, if the error still persists after trying all the methods stated above, then this means the cause of the error is deep-rooted. It is related to the Windows registry. Registry stores all your system files and activities performed on your PC. It usually gets damaged and corrupt if it is not cleaned frequently. The registry loads with unnecessary and obsolete files like junk files, cookies, internet history, bad registry keys and invalid entries. These files if not removed, accumulate and damage the registry, DLL files, and system files too thereby generate BSoD errors like 0x00000050 error messages. You can clean and repair the registry manually but it requires a great deal of expertise. The ideal and easiest way to clean it is to download Restoro. This is highly functional and easy-to-use software. It is embedded with multiple powerful utilities including such as a registry cleaner, an antivirus and a system optimizer. The registry cleaning feature scans for all errors related to the registry. It removes obsolete files, invalid entries, restores damaged DLL and system files. The antivirus feature simultaneously detects and removes all kinds of malware. These include viruses, Trojans, spyware, and adware affecting your PC. While the system optimizer feature ensures that your PC functions at its optimum speed. It is a safe and powerful PC Fixer. It has a user-friendly interface and compatible with all Windows versions. Click here to download Restoro and Fix Error 0x00000050

Windows 11 is getting adopted more and more each day, and how more and more users are installing it some smaller bugs show up. One of the things that have manifested lately is that in some cases installation assistant is not working throwing error 0x8007007f at you while you try to finish the update of Windows. If you are one of the users that are experiencing this kind of annoyance, we have a solution for you. Follow this guide as presented and repair this annoying error.

Run installation assistant as administrator

This is the most simple solution that can solve problems right away and it is advised to be tried first.

1. Download standalone Installation assistant installer from Microsoft website here
2. Go to the location where you had the file downloaded
3. Right-click on file
4. Click on Run as administrator
5. On the permission box, click YES

Disable antivirus and/or firewall software

Antivirus or firewall software can sometimes interfere with Windows’s update and prevent for any reason download or installation of files they consider not safe. If the first solution has not provided success turn off your antivirus or firewall software and try again to install updates by running them as administrator. Now, how many different antivirus or firewall applications are unique pieces of software it would take too much time to cover all of them but usually and most commonly if you right-click on the taskbar icon of security app most of the time you will have either option to open it and close it or simply just to snooze it for some time.

Set the compatibility

If you are still having issues with installing updates try setting compatibility mode for the installer.

1. Download standalone Installation assistant installer from Microsoft website here
2. Go to the location where you had the file downloaded
3. Right-click on file
4. Click on properties
5. Go to the Compatibility tab
6. Click on Run this program in compatibility mode for:
7. Choose Windows 7
8. Click on APPLY
9. Run installer

Run SFC scan

If you are still facing installation issues there is a high chance there is something wrong with Windows system files. Luckily Windows itself has a built-in tool to address these issues and fix them.

1. Open command prompt as administrator by pressing Start and searching for the command prompt and then on right-clicking on run as administrator
2. Once the command prompt opens type in SFC / SCANNOW and press ENTER
3. Wait for the whole process to complete and then restart your system

Microsoft’s initial Windows 11 hardware requirements were not really well received by users and they were not really clearly represented from the start making a lot of potential customers slowly drift away from the hype. It seems that Microsoft has acknowledged this since they have changed their tune about system hardware requirements for the upcoming Windows 11. It seems that Windows 11 will be able to be officially installed on unsupported computers but with a little inconvenience.

What is a catch?

Windows 11 will still have the same hardware requirements and if the PC meets them, that computer will be officially supported, other ones (any that can run Windows 10) that do not meet system requirements can still run Windows 11 but the system will have to be clean installed. So no upgrade option for old computer users, just a clean install. This means of course that you will need to download the ISO image and make a bootable USB in order to install it. Also since you will be doing a clean install do a backup of the hard drive since it will need to be formatted. Also, Microsoft has stated that with unofficially supported PC some driver updates might not be delivered leaving you with either older driver versions or relying on your hardware manufacturer on them. This is still not confirmed by Microsoft, just stated as an option. We will see how it goes.

Conclusion

It is very good that Microsoft has reconsidered its system requirements and will not stubbornly push its initiatives over the top requirements allowing even older computers to install new OS. I am sure over time lot of users will upgrade their hardware and drive into officially supported waters, but it is good that they will be able to use new OS on their current hardware.

Booting up your Windows 10 computer does not always go smoothly as it is a complex process and you may encounter some issues along the way. There are various files that get loaded and executed while the Windows 10 operating system is loaded. You might encounter a page that displays the following error message:

“Operating System Loader has no signature. Incompatible with SecureBoot. All bootable devices failed Secure Boot verification.”

There are two main causes for this error – it could be that your computer is using a bad unauthentic Boot Image File or the Windows operating system is installed in the BIOS Mode. To fix this error, you can try performing a “cold” boot or reset the BIOS or reset your Windows 10 computer.

Option 1 – Try to perform a Cold Boot

To perform a cold boot, all you have to do is press and hold the power button of your CPU until it goes off. Once it’s off, boot your computer normally and then check if the problem is now fixed.

Option 2 – Try resetting the BIOS

If performing a cold boot did nothing to fix the problem, you can try to reset the BIOS instead.

• Start your computer and tap the F10 key during the booting process to enter the BIOS. If it does not work, you can try tapping the F1 or F2 key as well as the Del key.
• Once you’re already in the BIOS, tap the F9 key to get the prompt to RestoreLoad default configuration now for the BIOS.
• Next, click on Yes and then follow the next on-screen instructions that appear to set the BIOS back to its default settings.
• Once you’re done restoring the default settings of the BIOS, restart your computer and then check if it now boots properly.

Option 3 – Try to change the Boot Sequence

You could also try to change the Boot Sequence to fix the error. To change the Boot Sequence, follow these steps:

• Open Windows Settings and then go to Update & Security > Recovery Advanced Startup and then click on Restart Now.
• Once your computer has restarted, you should see the Advanced Options.
• Next, select Troubleshoot > Advanced Options. This will offer another set of options and from there, select the UEFI Firmware Settings and it will let your restart your computer.
• After the restart, it will take you to the Firmware settings and from there, switch to the Boot tab where you’ll see the “Boot Priority” which contains the list of the connected hard drive, CD/DVD, ROM, and USB drive.
• Use the arrow keys on your keyboard to change the boot sequence.
• Once you’re done, save and exit.

Option 4 – Reset your computer

• Tap the Win key or click on the Start button located in the Taskbar.
• Then click on the Power button at the bottom right portion of the screen.
• Next, press and hold the Shift key on your keyboard and then click on Restart. This will restart your Pc into the Advanced Startup options.

Note: Once you have access to the Advanced Startup options, you have to go to the setting which allows you to Reset your Windows 10 PC. All you have to do is select Troubleshoot > Reset this PC to reach the following screen

• Afterward, select either the “Keep my files” option and then proceed to the next on-screen instructions that follow to reset your Windows 10 computer without losing your files.

The error 0x0000001 also known as APC_INDEX_MISMATCH is one of the fatal errors that users encounter upon starting their computers. This error appears when there is a sequence mismatch in the driver or system file when it is disabling or re-enabling Asynchronous procedure calls. The mismatch happens maybe because of a virus or malware attack, not shutting down your computer properly and incomplete installation of the system files. There are many ways to fix this error. The easiest way is to download a repair utility program. The use of these programs perfectly fits those that are not so technical. All you have to do is download the program and install it on your computer. As soon as it is installed, the program will now scan and diagnose your computer for any errors. After it identifies the errors, it will then repair your PC through either manual or automatic tools. To those who are techie and enjoy the manual resolution, you may take advantage of Microsoft’s analyze debug extension which tells you the cause of the error. After determining the cause then you can now start fixing the error. Check if Hardware is functioning properly. If the cause is due to a hardware malfunction, you will have to make sure that all the pieces you are using are working. All the wires should be attached to their respective ports. Not only that, but you also must make sure that before installing the hardware, it is compatible with the Windows version that is installed into your computer. Use Compatible software. If the problem was caused by software or a driver, you can uninstall and reinstall it. Always make it a rule that whenever you install a program or new software to your computer, make sure it is compatible with your operating system and never skip a step during the installation process. You also have to see to it that the program you are installing does not contain any viruses, malware, or spyware that can be harmful to your computer. Update your Drivers Regularly. In most cases though, the cause of the APC_INDEX_MISMATCH error are outdated device drivers. To resolve this, you will have to go to your Control Panel then look for Device Manager. As soon as you are in the Device Manager window, you can now see the different devices running on your computer. You right-click on each device and check the Properties.  In the Properties window, click on the Driver Tab and look for the date when it was last updated. You can then go to the manufacturer’s website and compare the dates. For a new Windows operating system, you no longer have to go to the manufacturer's website though. All you have to do is click on Update Driver and it will automatically search for updates online. Use a Genuine Operating System. There are also cases where the 0x0000001 error won’t allow you to access your computer. In this case, we have to suspect that the problem could be in your Operating system. To resolve this, you can reinstall your Operating System or update your current operating system. Only use a genuine licensed Windows Operating System because this will not only protect you from Malware and Viruses but it allows you to get all the recent update available from Microsoft. Update your Windows 10 regularly by going to Settings > Windows Update > Check for Updates. You may also turn on the Automatic Update by going to the Advanced options is found on the Windows Update Page. You can always get help online but it really helps to know the basics and determining the root cause of the error.