If your browser of choice is Google Chrome then sit back and enjoy the ride as we are going through some great productivity tips for it.
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Error code 0xc000021a occurs when the system is unable to start or there’s a failure in critical system processes. Normally, it would take about several seconds for the system to boot and while on the startup process, error code 0xc000021a may take place to block the system to boot up. Users will get a blue screen of death (BOSD) when this error occurs. When upgrading to Windows 10, be careful; you might encounter other error messages such as error code 8007002c.
Error CausesThere are several reasons why error code 0xc000021a occurs. It is important to have a full understanding of what caused the blue screen of death before attempting to fix the error by yourself. See below for a few common causes:
• Computer malware has infiltrated your device.
• Important files such as Winlogon.exe and Csrss.exe are damaged. Winlogon.exe file is responsible for handling the login and logout processes while Csrss.exe is a vital part of Microsoft Client or Server ‘Runtime Server Subsystem’. Once one of these files is damaged or deleted, a stop error will occur.
• When there are mismatched system files installed or system upgrading process failed or still incomplete.
• Premature unloading of Wbemprox.dll
• Newly installed third-party software is not compatible with the operating system.
• There are corrupted, outdated, or incorrectly configured device drivers.
• There’s insufficient space in the system partition. Once the system partition is full, certain errors such as error code 0xc000021a will manifest.
• Windows registry is corrupted or damaged due to a software or system change. This means there are registry entries that are not cleared after uninstalling an application.
In fixing error code 0xc000021a, you might want to try and manually do so. Manual repair methods can give users effective and efficient solutions, addressing the root problems in relation to Windows error codes. Once the manual repair method is correctly implemented, users will be able to resolve issues immediately.
However, there might be instances when a Windows professional is needed. In such cases, seek help from a certified Windows expert or you might want to consider using an automated tool whenever necessary.
In order to fix Error code 0xc000021a in Windows 10, you might need to convert the partition or drive from NTFS to GPT. See below for the procedure:
1. Shut down your device then put in the Windows installation USB key or DVD.
2. Boot your device to the USB key or DVD in UEFI mode.
3. Inside the Windows Setup, open a Command Prompt window by pressing Shift + F10.
4. Type diskpart in the Command Prompt window to open the diskpart tool.
5. Type list disk to identify which drive to reformat.
6. Select which drive to reformat by typing select disk in the command prompt. Afterward, type clean then hit
Enter. Once done, type convert gpt to be able to convert the drive from NTFS to GPT. Finally, type exit and press Enter. You can now close the Command Prompt window.
7. Once the partition or drive is converted from NTFS to GPT, the user can now continue the Windows Setup installation.
NOTE: Select Custom in choosing which installation type to use. The drive will then appear as a single area of unallocated space. Choose that unallocated space then select Next. At this point, Windows will now begin the installation.
There are times when system files get corrupted or damaged which will result in system failure. If this is the case, you can use a Windows free tool to repair corrupted or damaged system files.
1. Right-click on the Start button then selects Command Prompt (Admin) from the list to open a Command Prompt window.
2. Once the Command Prompt appears, type sfc /scannow then hit Enter. Wait until the process completes. If the process is completed and it doesn’t report any error or issues that remain unsolved, you might want to employ the next method.
Resetting Windows will delete all software and user accounts installed in the operating system and will reinstall a fresh Windows.
1. Boot your device using a Windows installation USB key or DVD. Select Repair your computer to locate the Troubleshoot option. Afterward, choose Reset this PC.
NOTE: If the device is able to boot the system, you can reset Windows without using a Windows installation USB key or DVD. You just have to boot the device then navigate to Settings in the Start button. Choose Update & Recovery then select Recovery found on the left pane. Choose Reset this PC option then select Go back to an earlier build and Advanced startup. Select Get Started button found in the Reset this PC tab.
2. Depending on your device’s condition, you can either select Keep my files or Remove everything. Both options will remove all applications installed in the device and will revert to default settings.
3. Choose either Just remove my files or Remove files and clean the drive depending on the situation. If you choose the Remove files and clean the drive option, the procedure will take longer as it will erase all the files permanently. In this case, deleted files cannot be recovered. However, if you don’t want to remove files permanently, select Just remove my files.
4. Once you’ve decided how to reset your system, click on Next once the Warning screen appears. Afterward, choose Reset once prompted. When the process completed, click on Continue.
Can’t seem to put up with the long and technical manual repair process? You can still fix this error by downloading and installing a powerful automated tool that will surely get the job done in a jiffy!

If your browser of choice is Google Chrome then sit back and enjoy the ride as we are going through some great productivity tips for it.
So without further talking let's dive right into them.
Error CausesError Code 0x80070570 is a common Windows 10 error code that generally is seen by users who are attempting to install a new version of the operating system. While it is most often associated with Windows 10, variations on this same error code have been present in previous versions of the operating system, going all the way back to Windows 7.
Common symptoms include:
Error CausesIn some cases, Error Code 0x80070570 arises erroneously when the system isn’t able to find a particular file that it needs. Other times, it happens when there is a conflict with the antivirus software that you are running and the installation software. Finally, there may be a faulty source of RAM in your computer that needs to be removed before the installation can be completed.
Regardless of what you believe to be the cause behind the error code, there are at least two different methods that you can use to try to resolve Error Code 0x80070570 on your device. The first is fairly simple and easy to follow, while the second requires a little bit more knowledge of your hardware in order to complete it successfully.
There are two common ways that users can attempt to get around Error Code 0x80070570 on their devices. Each requires a little more skill and technical knowledge than the last. If you don’t feel like you have the skill, time, or ability to invest in the methods below, be sure to get in touch with a Windows repair technician who can help you to complete the necessary steps in the right ways.
Here are the best ways to attempt to resolve Error Code 0x80070570 on your Windows device:
In some cases, when Error Code 0x80070570 appears on your computer, you can simply click on the OK button and then go back to the screen immediately proceeding where your installation has left off, choosing to restart the process of installation. For some users, repeating this method at least four times has allowed them to bypass the error without undertaking more serious and time-consuming methods to resolve the issue at hand.
If you have more than one source of RAM in your computer, first remove one of the sources, then re-attempt installation. If you are still encountering Error Code 0x80070570 after removing one of the sources, continue to remove each until you are down to a single source, then trade that last source for one of the ones that have been pulled.
If you have a bad source of RAM, this can help you to figure out which input is causing the error to appear and to address the problem appropriately. Once you have determined which specific source is causing the problem, you can reboot your computer and attempt to run the installation process one more time.
If your RAM sources are not specifically causing the issue, you may still need to run diagnostics tests on your hardware to identify the source of the problem at hand.
If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.
Error Code 0x80070643 or Windows Update error code affects various versions of the Windows operating system, including Windows 10. Error code 0x80070643 usually occurs due to corruption within the .Net Framework. When this occurs, users will be unable to install updates they have downloaded on their PC.
Error CausesError codes within Windows occur for many reasons including corrupt system files, viruses, and lack of space on your PC. In terms of error code 0x80070643 in Windows 10, the cause usually relates to a problem with the .NET framework or errors within one’s registry.
To solve error code 0x80070643 in Windows 10, users will need to employ various manual repair methods. These methods seek to fix core problems that result in the error being present on your device in the first place. Thus, the methods include the use of the .Net Framework Repair tool, resetting Windows Update components, or running a clean boot.
Note that the instructions provided in this article must be followed correctly, as making changes to your computer via these manual repair methods can result in serious problems if mistakes are made. Consider a Windows repair technician if you are unable to complete the steps mentioned in the manual repair methods below. Note, failure to rectify this error might result in other error messages, such as error code 0xc004fc03
As error code 0x80070643 may be triggered by issues related to the .Net Framework on your machine, it’s important that you download the .Net Framework Repair tool. This tool, as the name suggests, helps to repair errors it detects within the setup or updates associated with the framework.
The tool is available on the official Windows site. Download the tool and follow the instructions provided. Once you’ve downloaded the .Net Framework Repair tool, run it and wait until it fixes all problems detected within the framework.
Afterward, reboot your computer and check to see if Windows Update is functioning properly. If the error code reoccurs, proceed to another solution by implementing the second manual repair method listed in this article.
This method is the most technical of all the methods mentioned in this article. It will require that Windows 10 user access Command Prompt and make modifications to the Windows registry – an area of the operating system which stores important information, settings and other details regarding hardware and programs installed on your machine. Follow the steps carefully and be sure to back up the registry before proceeding with this manual repair method.
Step one: Type Command Prompt in the search box near Start, then select Command Prompt (Admin).
Step two: Select Yes as soon as the User Account Control box appears.
Step three: Stop Windows Update service, the BITS service, and Cryptographic service by typing the following commands:
net stop bits
net stop wuauserv
net stop appidsvc
net stop cryptsvc
Step four: Be sure to press Enter after typing each command.
Step five: Type the following command, then Enter to delete qmgr*.dat files:
Del "%ALLUSERSPROFILE%Application DataMicrosoftNetworkDownloaderqmgr*.dat"
Step six: Press enter after typing the following command:
cd /d %windir%system32
Step seven: Reregister the files for BITS and Windows Update that you stopped in step three. To do this, type the following commands, selecting Enter after each command:
regsvr32.exe atl.dll
regsvr32.exe urlmon.dll
regsvr32.exe mshtml.dll
regsvr32.exe shdocvw.dll
regsvr32.exe browseui.dll
regsvr32.exe jscript.dll
regsvr32.exe vbscript.dll
regsvr32.exe scrrun.dll
regsvr32.exe msxml.dll
regsvr32.exe msxml3.dll
regsvr32.exe msxml6.dll
regsvr32.exe actxprxy.dll
regsvr32.exe softpub.dll
regsvr32.exe wintrust.dll
regsvr32.exe dssenh.dll
regsvr32.exe rsaenh.dll
regsvr32.exe gpkcsp.dll
regsvr32.exe sccbase.dll
regsvr32.exe slbcsp.dll
regsvr32.exe cryptdlg.dll
regsvr32.exe oleaut32.dll
regsvr32.exe ole32.dll
regsvr32.exe shell32.dll
regsvr32.exe initpki.dll
regsvr32.exe wuapi.dll
regsvr32.exe wuaueng.dll
regsvr32.exe wuaueng1.dll
regsvr32.exe wucltui.dll
regsvr32.exe wups.dll
regsvr32.exe wups2.dll
regsvr32.exe wuweb.dll
regsvr32.exe qmgr.dll
regsvr32.exe qmgrprxy.dll
regsvr32.exe wucltux.dll
regsvr32.exe muweb.dll
regsvr32.exe wuwebv.dll
Step eight: Reset Winsock in Command Prompt by typing the following command, then selecting Enter:
netsh winsock reset
Step nine: Configure proxy settings in Windows 10 with the following command, then press Enter:
netsh winhttp reset proxy
Step ten: To restart the BITS, Windows Update, and Cryptographic service, type the following commands, then press Enter:
net start bits
net start wuauserv
net start appidsvc
net start cryptsvc
Step eleven: Install the latest Windows Update Agent.
Step twelve: Restart your machine.
Once you’ve restarted your PC, check Windows Update to verify if the error code is resolved. You should now be able to access the latest updates on your device. However, if a problem has arisen and the error code reoccurs, you will need to proceed with a Clean Boot.
If you wish to always have at your disposal a utility tool to fix these Windows 8 and other related issues when they do arise, download and install a powerful automated tool.
ChatZum is a Potentially Unwanted Program that installs a Toolbar into your browser. This program allegedly allows users to zoom in on photos without clicking on them, however, upon further research, it was discovered that this function does not work on the latest version of browsers.
From the Author: ChatZum is a Browser add-on (toolbar) that enables its users to hover over images in Major Social network's websites and view a larger version of an image.
While installing this toolbar will track user web browsing sessions and will record website visits, clicks, and sometimes even personal information. This information is later used to display targeted ads to the user. To allow easier user tracking, the program changes the browser home page and default search engine to Nation Search Advanced, which injects additional advertisements and tracks user activity.
Several anti-virus applications have marked this program as Potentially Unwanted, and it is not recommended to keep it on your computer, especially considering the fact it will most likely not work on your browser.
chkdsk /f /r
Option to right-click on the taskbar and launch task manager is gone but do not worry there are other same and simple ways you can launch it.
“We couldn’t install Windows in the location you choose. Please check your media drive. Here’s more info about what happened: 0x80300002”You can encounter this kind of error if there is corruption in the partition table of the drive where the installation is in progress. In addition, corruption on the Media device could also cause this problem. So if you encounter this error when running Windows Setup, read on as this post will guide you in fixing it. There are several ways to resolve this issue. The first thing you can do is to verify the compatibility between the BIOS and the installation media. You could also try recreating all the partitions as well as recreating the bootable USB drive. For more detailed information, follow the given options below.