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 In most cases though, the cause of the APC_INDEX_MISMATCH error are outdated device drivers.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.

“Windows could not configure one or more system components. To install Windows restart the computer with error code 0xc1900101-0x30018.”When you check on the Windows 10 rollback log, you will see a part with the “iisetup.exe” that’s related to the abort. Usually, the upgrade process completes over 50% and gets stuck and then rolls back later on and generates the error logs. This kind of error, in most cases, appears during the upgrade of Windows 10 and is related to the Internet Information Services or IIS in Windows 10. For some unknown reason, it restricts the installation or the upgrade which causes the error to appear. To fix the “Windows could not configure one or more system components” error, you can try to remove the IIS from the Windows Features or rename the “inetsrv” folder. You could also move all the folders related to IIS to another drive. For more details, refer to the options provided below.
Run the Windows Memory Diagnostic tool
Error Causes
Storage management Page update
Another thing with the Steam store management page is the ability to move installation files from one location to another. Let’s say that you have two or more hard disk drivers in your machine and that you have SSD that you use for running stuff since it is fast and larger and slower one for storage. Now you can easily and quickly move one installation from one to another in order to take advantage of your faster SSD for quicker LOAD game times without making a new installation.
Also, you can now drag and drop items in the download bracket to reorder download orders or place them as active downloads to start downloading right away. Get-AppxPackage -allusers Microsoft.WindowsStore | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"Another option is to download a Windows Update Troubleshooter. After you download it, open the troubleshooter tool and follow the steps. If you saved the file instead of directly opening it, go to the folder where the troubleshooter was saved and double click on the wu.diagcab file to rub the troubleshooter. One of the most interesting error codes that you might encounter when accessing the Microsoft store is error code 1. This particular error code is resolved by changing your PC’s region to the United States. To do this, go to Settings and look for Time & Language. Then go to region and language. Under the Country or region, choose the United States from the dropdown menu then restart your computer. The troubleshooting procedures above are the most common solution to resolve the problem on Microsoft Store issues but there are times that these procedures won’t work. If you are not confident to resolve this through the procedures mentioned in this article, there are so many tools online that you can download to help you out. It also helps to contact Microsoft or consult a technician to ensure that you are doing the correct procedure.
Some Windows 7 or Windows 8/8.1 users are having a hard time upgrading to Windows 10 as they are being prompted for a product key. By default, the Windows 10 operating system does not require a product key and users should not be prompted for one, given you upgraded your computer from an activated Windows 7 or Windows 8/8.1 license or from the Windows 10 Preview build. However, there are some users encountering this problem and there are several reasons for this.
Error CausesThere are a few reasons why some users are being prompted for a product key when upgrading to Windows 10:
Before you can fix this problem, you need to know why you’re being prompted for a product key. Some things you should know about Windows 10 product key activation are the following:
Now, if ever you’re prompted for a product key when you’re upgrading to Windows 10, you can apply the following methods:
If you’ve been prompted for a product key upon upgrading to Windows 10, you should click on the “Do this later” option. Wait for a few days then Windows 10 will get activated automatically.
One of the reasons Windows users are being prompted for a product key when upgrading to Windows 10 is that they have downloaded a wrong edition of Windows 10 and do not correspond with your current system.
NOTE: Users of Windows 7 Enterprise, Windows 8.0 Enterprise, and Windows 8.1 Enterprise are not eligible for the free upgrade offer.
If your Windows 7 or Windows 8/8.1 is not genuine or activated, you will get prompted for a product key. You need to make sure first your current system is activated.
Another thing you can try doing is to run the system file checker utility to scan if there are any broken operating system files. In doing so, you’ll be able to detect problems that might be preventing the product activation of your Windows 10 upgrade.
If in case you’ve exhausted all your resources and you are still being prompted for a product key when upgrading to Windows 10, you can try contacting the Microsoft Activation Center for further details. Check here for the appropriate telephone numbers to contact.
If you still experience the error after doing the methods above, you might want to try a powerful and trusted automated tool to fix the job.