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How to Fix the BSoD 0xc0000420 Error: 5 Quick Ways

To get rid of this BSoD error, uninstall incompatible software

4 min. read

Updated onApril 12, 2024

updated onApril 12, 2024

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The error code 0xc0000420 on Windows is a type of BSoD that indicates an unknown software exception. This error occurs when you try to run an application but instead of opening, your system crashes.

The exactcause of the BSoD errorcan vary but aside from corrupt or incompatible software, it can also be related to issues such as memory corruption, ordriver problems.

How do I fix the 0xc0000420 error?

How do I fix the 0xc0000420 error?

1. Uninstall the problematic application

After uninstallation, do aclean-up of software leftoversto get rid of all software components completely. While you’re still here, ensure that your computer’s hardware components, such as the RAM and hard drive, are functioning properly.

Faulty hardware can also cause system crashes. Use built-in diagnostic tools or third-party software to perform hardware tests like thememory test. If the problem persists, check for OS and driver updates to ensure your system is compatible with the new software.

2. Run DISM and SFC scans

3. Scan for viruses

Since the 0xc0000420 error is brought about by a corrupt installation, you can never be too sure whether malware snuck into your PC. Just to be sure, perform a comprehensive scan.

You can also run areliable antivirus programto catch those that camouflage themselves and bypass Windows’ built-in security tool. For example, ESET HOME Security Essential allows you to perform a deep scan of your system and identify the malware that may have caused your issue, you can easily remove it and then keep your computer safe with its real-time scanning and shielding features.

⇒Get ESET HOME Security Essential

4. Perform clean boot

5. Perform a System Restore

Since most users reported that the issue started after installing new software or drivers, a System Restore can undo recent changes and help restore system stability.

While all the solutions we’ve provided are great starting points to resolve the 0xc0000420 error, they don’t guarantee a sure-bet resolution. Anautomatic BSoD fixeron the other hand can guarantee you a fix for this and others like0x00000023 erroreffortlessly.

Since you can never forecast when a BSoD error will occur, we encourage you totrigger a BSoD errorfrom time to time. Eventhough unorthodox, it’s better to catch problems before they render your system unusable.

That’s a wrap from us but do let us know if you’ve been able to fix this error in the comment section below.

More about the topics:BSoD error codes

Claire Moraa

Windows Software Expert

Claire has a knack for solving problems and improving the quality of life for those around her. She’s driven by rationality, curiosity, and simplicity, and always eager to learn more about Microsoft’s products. With a background in teaching and reviewing, she breaks down complex topics into easily understandable articles, focusing mostly on Windows 11, errors, and software.

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Claire Moraa

Windows Software Expert

With a background in teaching and reviewing, she breaks down complex topics into easily understandable articles, focusing mostly on Windows 11 errors.