How to fix Access Violation error 0xC0000005 on Windows?

by Ugnius Kiguolis - -


Issue: How to fix Access Violation error 0xC0000005 on Windows?

Hello, for some reason, installation of apps is interrupted by a following message: “Windows installation encountered an unexpected error. Verify that the install sources are accessible, and restart installation.” Error code: 0xC0000005. Sometimes this message shows up out of nowhere when I’m browsing or doing other installation non-related tasks. What could this be? Please help!

Solved Answer

Windows is an intricate system, which is performing multiple tasks once activated. Therefore, all constituent parts of the OS have to work flawlessly. If, for some reason, one of the parts exits the formations, the system may start reporting about malfunctions by slowing down, freezing, or bringing up error messages. Error code 0xC0000005, also known as Access Violation Error, is one of them.

0xC0000005 is a relatively rare but broad error, as it might even prevent users from using the most common Windows functions, such as preventing audio from being played or being unable to access Control Panel. Without a doubt, such scenarios can significantly reduce user experience, hence the need to perform 0xC0000005 fix as soon as possible.

There are a few different instances of the issue. The 0xC0000005 pop-up indicates the following information:

Windows installation encountered an unexpected error. Verify that the install sources are accessible, and restart installation

Error code: 0xC0000005

The application was unable to start correctly (0xc0000005). Click OK to close the application

It is stated that 0xC0000005 error usually occurs when a particular application is trying to access memory, which is no longer available or can’t be accessed for some reason. As a consequence, the connection cannot be created, and the system cannot perform a required task.

Fix Access Violation error 0xC0000005 on Windows

The system malfunction that causes 0xC0000005 error may be related to corrupted registry entries,[1] corrupted/outdated drivers, virus infection, incomplete/missing security updates, and similar issues. Thus, since the actual cause of the 0xC0000005 error is not clear, you should try all fixes provided below.

Note, before you try to fix 0xC0000005 manually, we suggest you try to solve the issue automatically with the help of a repair tool Reimage – it is designed to find a root cause of the problem and fix it within a scan. This is especially beneficial for less IT-savvy users.

Fix 1. Check the system for malware

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

In general, it’s advisable to check the system with a professional malware removal tool regularly. A full system scan is also a must when your PC encounters a system error, such as 0xC0000005, because viruses are by far the most common error pop-up and BSOD[2] causes. Thus, activate the anti-virus that is running on your PC and let it check the system thoroughly.

There are many free third-party applications that offer you trial versions, so a scan with these tools should suffice, although you should make sure that the provider is reputable – there are plenty of fake anti-malware tools that act like malware themselves instead of guarding users. However, the built-in Windows Defender (known as Microsoft Defender as of recently) is more than sufficient to ensure that no malware is involved. The tool has been tested by various independent parties and proved to be just as good as third-party providers, as is ranked as a top product on multiple occasions.[3]

  • In Windows search, type Security and click on Windows Security
  • Select Virus & Threat protection
  • Choose Scan options
  • Click on Full scan and then pick Scan nowScan computer for malware

Fix 2. Run Registry Editor

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

If malware scan did not help, follow these steps:

  • Press Win key + R, type regedit, and press Enter
  • When the Registry Editor opens, navigate to the HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\WindowsUse registry editor
  • Click LoadAppInit_DLLs and change its value from 1 to 0
  • To confirm the changes, click OK
  • Restart your PC and try to run the application that you couldn’t open before. If the error is gone, you don’t need to perform the next fix. If, however, 0xC0000005 still emerges, try the following fix.

Fix 3. Check the drivers

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Type Device Manager into Windows search and press Enter
  • When the Device Manager opens, check for malfunctioning drivers on the left pane. For this purpose, go through each device and check for the drivers marked with a yellow exclamation mark
  • In case there are no such drivers, it means that all of them are working properly. If, nevertheless, some of them are malfunctioning, right-click on them and select Properties
  • After that, click on Update Drivers and pick Search automatically for updated driver softwareUpdate drivers
  • Don’t forget to reboot the system when it’s done

Fix 4. Run SFC scan

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

System File Checker is an excellent built-in tool that can help users diagnose and repair system file-related errors. To run SFC scan, you should access Command Prompt with administrator's rights:

  • In Windows search, type in cmd
  • Right-click on Command Prompt result and select Run as administrator
  • Once Command Prompt window opens, type in the following command and press Enter:

     sfc /scannow

  • Wait for scan to finish – Windows will report the findings and attempt to fix issues automaticallyRun SFC scan

Fix 5. Use System Restore

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

This option will return your computer state to a previous point of time and you will not lose any personal files, although some apps might disappear so you will have to reinstall them.

  • Press Win + R simultaneously
  • Type in rstrui.exe and press Enter
  • Click Next
  • Select a restore point with a know good system configuration
  • Click Next and press FinishUse System Restore

Fix 6. Reset your PC

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

If none of the above methods help, you should reset your Windows. You will lose all the installed applications, although files will remain intact:

  • Right-click on Start button and select Settings
  • Pick Update & Security from the list and access Recovery panel
  • In the Reset This PC section, click Get StartedReset Windows
  • Select Keep my files
  • Proceed with on-screen instructions

Repair your Errors automatically team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:

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If you failed to fix your error using Reimage, reach our support team for help. Please, let us know all details that you think we should know about your problem.
Reimage - a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats.Reimage - a patented specialized Mac OS X repair program. It will diagnose your damaged computer. It will scan all System Files and Registry Keys that have been damaged by security threats.
This patented repair process uses a database of 25 million components that can replace any damaged or missing file on user's computer.
To repair damaged system, you have to purchase the licensed version of Reimage malware removal tool.

Prevent websites, ISP, and other parties from tracking you

Private Internet Access is a VPN that can prevent your Internet Service Provider, the government, and third-parties from tracking your online and allow you to stay completely anonymous. The software provides dedicated servers for torrenting and streaming, ensuring optimal performance and not slowing you down. You can also bypass geo-restrictions and view such services as Netflix, BBC, Disney+, and other popular streaming services without limitations, regardless of where you are.

A VPN is also crucial when it comes to user privacy. Online trackers such as cookies can not only be used by social media platforms and other websites but also your Internet Service Provider and the government. Even if you apply the most secure settings via your web browser, you can still be tracked via apps that you are connected to the internet. Besides, privacy-focused browsers like Tor is are not an optimal choice due to diminished connection speed.

Therefore, to stay completely anonymous and prevent the ISP and the government from spying on you, you should employ Private Internet Access VPN. It will allow you to connect to the internet while being completely anonymous, prevent trackers, ads, as well as malicious content. Most importantly, you will prevent the illegal surveillance activities that NSA and other governmental institutions are performing behind your back.


Recover your lost files quickly

Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can decide to reboot the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost.

Additionally, you might also be attacked by malware that can corrupt your Windows or encrypt files with a robust encryption algorithm, and ask for a ransom in Bitcoin for the decryption tool. Cybercriminals might not deliver what they promised, however, so it is better to attempt alternative file recovery methods that could help you to retrieve at least some portion of the lost data.

Data recovery software is one of the options that could help you recover your files. Once you delete a file, it does not vanish into thin air – it remains on your system as long as no new data is written on top of it. Data Recovery Pro is recovery software that searchers for working copies of deleted files within your hard drive. By using the tool, you can prevent loss of valuable documents, school work, personal pictures, and other crucial files.

About the author

Ugnius Kiguolis
Ugnius Kiguolis - The problem solver

Ugnius Kiguolis is the founder and editor-in-chief of UGetFix. He is a professional security specialist and malware analyst who has been working in IT industry for over 20 years.

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