Fix Windows C000021A Fatal System Error

 

problem: Windows C000021A Fatal System ErrorThis error is usually caused by misconfigured system files that create registry errors within your operating system. Windows errors can cause program lock-ups, slow PC performance, system crashes, computer freezing and more.

Fix Windows C000021A Fatal System Error Automatically - I have tw...We’ll also show you how to handle billing and payments, and how to install your Apps on multiple PCs or Microsoft accounts.If you're confident that this is the main drive where your OS is installed, hit OK.If you type "store" into the search bar and open the Windows Store app and then search for "DVD player" you will see that Microsoft has made one available, but it costs $15 (unless you upgraded).fix windows 10 fix unable to copy and paste to remote desktop session .Windows will do some more calculations and give you another a very similar looking box, this time with the option to delete ‘previous windows installation(s).It doesn’t rule you anymore.To run a troubleshooter, just click it in the Troubleshooting pane.I use the business version and liked the f...Vs Windows 10 release date, features, devices and free upgrade: Windows 10 might let users delete data Microsoft collects Rumours Met Police set to finish Windows XP upgrade in May News Best Linux distros 2018: the finest open source operating systems around In-depth What is a graphical user interface?Because of that, this guide does not include these concepts.Template - toreto.co - Best resumes and templates for your business Fix Windows 10 fix windows 10 how to fix your windows 10 start menu bt .Now, when you hit install, it should start installing the most up-to-date version of the operating system.2 - Can't upgrade to the latest Windows 10 version Windows 10 received a significant update (the Windows 10 Fall update) in November and there's already been another released at the time of updating this article (1st December 2017).How to use the Quicken Community Quicken Community Guidelines How to manage your Quicken Community email notifications Top Community Success Tips Share Your Expertise Give your opinion and help others Photo of smssecretary updating checking account smssecretary, 4 weeks ago 1 0 Problem Photo of JOHN HOLSINGER How to get past Account Status dialog display?One day these users will have to upgrade but right now Microsoft intends to keep supporting Windows 7 until 2020, so you’ve still got time.When this occurs Windows jumps in to save the day by doubling the size of the interface.Also, make sure you've opted to keep the personal files and apps and click Install to keep your data, apps and the majority of your settings untouched.Double-click Configure Automatic Updates in the list, select the Enabled radio button, and in the left-hand box select 2 - Notify for download and notify for install.

Cause: Registry errors generally occur when new programs are installed over old ones without the old programs being completely uninstalled. This can cause registry pile-ups and error messages. Another potential cause of these error messages can come from malicious software such as adware, spyware, and viruses.

Repair Windows C000021A Fatal System Error Instantly -This chapter is dedicated to solving technical problems you might have while communicating with your colleagues, friends or family.Recording Audio: Scans for problems that can prevent microphone audio recording from working.You should see confirmations that each service was either stopped or wasn't running.This wastes your resources.Search and Indexing: Fixes problems with Windows Search and the indexer.FOLLOW US Twitter Facebook Google+ RSS Feed Disclaimer: Most of the pages on the internet include affiliate links, including some on this site.As far as software goes, the guide focuses on how to install missing codecs, import photos and videos, and how to successfully sync devices using Windows Media Centre.It’s exactly what this section is dedicated to.First, check that System Restore is configured (see below, number 7) and create a restore point.This is how: Type “msconfig” into the search Run the app Click on the “services” tab Check the “Hide all Microsoft services” box System Configuration on Win8 Now just look through the list and if you see a program that you know you don’t use very often, turn it off and “apply”.Before you bother your family member again, or worse, spend your hard-earned money on an expert computer diagnostic, take a look at our guide to the most common Windows computer problems that anyone can fix.Paul Spieldenner, 1 hour ago Last reply: Paul Spieldenner, 36 minutes ago 1 1 me too 2 2 replies Problem Acknowledged Photo of Robert Lord screen reader - compatibility - Quicken 2018, Windows 10 Has anyone gotten good results using a screenreader likeZoomText or NVDA with Quicken 2018 for Windows?I want to figure out a way to install CS6 without running into these problems.5.4.4 (Build 54.21024.100).Reduce startup programs Many programs will load when Windows start, even though they don’t need to.Ivan Exploring latest tech trends.All rights reserved.Your task is simply to be aware of them and use them properly when needed.How to use the Quicken Community Quicken Community Guidelines How to manage your Quicken Community email notifications Top Community Success Tips Share Your Expertise Give your opinion and help others Photo of smssecretary updating checking account smssecretary, 4 weeks ago 1 0 Problem Photo of JOHN HOLSINGER How to get past Account Status dialog display?I use the business version and liked the f...Our guide is meant to help you learn what’s changed and how you can administrate multiple users on your PC.To run a troubleshooter, just click it in the Troubleshooting pane.Internet Connections: Detects and fixes problems with your Internet connection and loading websites.HomeGroup: Looks for problems with your HomeGroup network and file-sharing settings.Windows will do some more calculations and give you another a very similar looking box, this time with the option to delete ‘previous windows installation(s).CPUCPU CPU CoolerCPU Cooler MotherboardMotherboard MemoryMemory StorageStorage Video CardVideo Card Power SupplyPower Supply CaseCase Cooling Case Fans Fan Controllers Thermal Compound Drives Optical Drives Expansion Sound Cards Wired Networking Wireless Networking Displays Monitors External Storage External Hard Drives Peripherals Headphones Keyboards Mice Speakers Uninterruptible Power Supplies Software Antivirus Audio & Video Backup Design & Illustration Internet Security Office & Productivity Operating Systems Photography ©2018 PCPartPicker, LLC.See related Best Windows 10 tips and tricks How to speed up Windows 10 How to get help in Windows 10 1 - Can't upgrade from Windows 7 or Windows 8 We could write a book about the problems people report with the upgrade to Windows 10.Now you can immediately toggle on and off startup programs.

SolutionS: Scan and repair any missing or damaged Windows registry files using RegCure Pro. After the registry issues are resolved, it is recommended to optimize your PC by removing any spyware, adware and viruses with Plumbytes.

STEP 1: Automatically Fix Windows C000021A Fatal System Error with RegCure Pro

STEP 2: Optimize your PC with Plumbytes.

How to Fix Windows C000021A Fatal System Error Fast -Luckily, Windows 10 comes with all the tools needed to protect your PC from these threats.Paul Spieldenner, 1 hour ago Last reply: Paul Spieldenner, 36 minutes ago 1 1 me too 2 2 replies Problem Acknowledged Photo of Robert Lord screen reader - compatibility - Quicken 2018, Windows 10 Has anyone gotten good results using a screenreader likeZoomText or NVDA with Quicken 2018 for Windows?All rights reserved.Thanks, Windows!Windows should scan your system for a while and then a box will pop up.However, the basic principles will be familiar to anyone who has ever used a Smartphone.I have multiple checking accounts, but this problem concerns...fix windows 10 5 steps to fix iphone unrecognized by itunes on windows 10 .To remove junk files with CleanMyPC: Open the app Click “scan” from the “My computer” tab And...uh...that’s pretty much it Within minutes you’ll be shown all the space you can free up with a single click of the mouse.

 

Solution One: Automatically Fix Windows C000021A Fatal System Error errors with RegCure Pro


1) Download and install RegCure Pro to fix Windows C000021A Fatal System Error errors.
Windows C000021A Fatal System Error
2) Install program and click Scan button.
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3) Click the Fix Errors button when scan is completed.
4) Restart your computer normally to have a check.

 

Solution Two: Run a full system scan with Plumbytes Automatically


Plumbytes is one of the most powerful spyware removal tools on the market. Plumbytes can help you detect and delete various kinds of malware, spyware, viruses and adware from your computer. Follow the removal steps below to automatically remove malicious files.


Step 1: Download removal tool Plumbytes by clicking on the below button.
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Step 2: Following the installation wizard to install it on your PC. After the installation, launch Plumbytes and click ‘Run a Scan’ to perform a full and quick system scan on your PC.
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Step 3: As soon as finishing the system scan, choose Select all and then click Remove Now to get rid of all the threats on your PC
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Posted by: Greg Zimmer
Last updated:
Windows C000021A Fatal System Error
Operating Systems Supported
  • Windows 10
  • Windows 8
  • Windows 7
  • Windows Vista (SP-2)
  • Windows XP (SP-3)
Minimum System Requirements
  • 50 MB of free hard drive space
  • Internet Explorer 6 and above
  • Administrative access rights
Windows C000021A Fatal System Error