Asus is an excellent brand, and its compatibility with Windows is fantastic. But some users are dealing with an error named AsIO3.sys. A dialogue box is opening with “can’t open AsIO3.sys error code 433″

It’s imperfectly okay to see this one or two times. But, if you are among those who are facing it more often, then it is really daunting. Many reasons led to this error on the screen.

However, even this error lets your screen into the blue screen. That is even worse and needs to be fixed. If you are clueless, here is our exclusive guide on how to fix AsIO3.sys error on Windows 10/11 to follow.

What is AsIO3.sys

AsIO3.sys is a part of the Asus application probe. The pre-install driver is useful to ensure that sample-rate conversion or digital signal processing when using ASIO (Asus Input Output) is working perfectly.

Apart from this, AsIOS3 is also involved in monitoring the temperature of RAM and GPU speed. Moreover, this useful software also takes care of other hardware. Being a severe component of the system, you need to be aware of it to prevent damage.

Why AsIO3.sys Error Occurring

There are many reasons that the error pop-up is repeatedly arriving. Before jumping into the fix, let’s understand the cause of the error.

  • Virus and malware attacks.
  • Problematic System Files.
  • Faulty Registry Entry.
  • Memory corruption.

How to Fix AsIO3.sys Error on Windows 11/10

Enough discussion about the error. Now focuses on the fixes asap. By following these super simple processes, you will get rid of it.

Important Note- We recommend you backup all your data on the system. It will benefit you if you lose any data during the process.

1. Scan Viruses and Malware

Viruses and malware are one of the key reasons of can’t open AsIO3.sys. Therefore, scanning viruses and malware become super important. Once you have done with the scanning process, you will get the result. Now perform accordingly on behalf of the result.

  1. Press Windows > Settings > Privacy and Security.
  2. Now click on Windows security.
  3. Then click on Virus & threat protection from the options.
  4. You must run a full scan to check for any suspicious problems. Click on the Scan button.Virus & Threats Protection

2. Delete Recently Installed App

If you notice this particular issue after installing the app, what would be the best fix except delete the app? Let’s see how to uninstall/ delete the recently installed app.

  1. Press Windows > Apps > Installed Apps.
  2. Now find the most recently installed apps.
  3. After finding the app click on three vertical dots, and click on the uninstall button.
  4. At last click on Uninstall again for confirmation.

Alternative Method to Uninstall Apps

  1. Press Windows > Search for Control Panel > Open Control Panel.
  2. Now click on Program.
  3. Then click on Programs and Features.
  4. You have to find the recently installed app.
  5. Next right-click on it, and click on the uninstall button to remove the app and its data from the device.

3. Run SFC Scan and DISM Scan

SFC is a useful tool, and it can solve any issue. Therefore, the AsIO3.sys error is not the exception. However, SFC also helps fix corrupt system files.

  1. Press Windows > search Command Prompt > Run as administrator.
  2. Now use this command, and hit enter.
    sfc /scannow
  3.  It will show the problem has been resolved, now you can close the command prompt and restart the system.


DISM scan is another useful method to fix corrupt system files. Here’s what you need to follow.

  1. Press Windows > search Command Prompt > Run as administrator.
  2. Now type this command, and hit enter.
    DISM.exe /Online /Cleanup-image /Restorehealth
  3. Exit from Command Prompt, and restart the system once again.

4. Fix the Disk Using Command Prompt

We have already processed two methods in Command Prompt. Here is another method that you can try to resolve disk-related issues.

When the system deals with hard disk corruption, the system throws AsIO3.sys errors. Follow this to fix the corrupt hard disk.

  1. Open Command Prompt as administrator by following the same procedure.
  2. Now type chkdsk on the dashboard, and hit enter.
  3. It will find the problem for you to fix asap.

5. Run Memory Diagnosis

Next, you need to check the memory status to see whether it is corrupted. If your memory got corrupted, you would face many problems including AsIO3.sys error.

Let’s see how to run the memory diagnosis.

Part – 1 

  1. Click on Windows, and search for Windows Memory Diagnosis.
  2. Whenever you click on the Windows Memory Diagnosis, you will get two options to choose from: select any according to your preference. One is will analyze your system’s memory right. And the second one will start in the next restart of the system.
  3. The system will restart automatically after analyzing the memory.

Part – 2

Now time to check the report of the diagnosis using the windows event viewers.

  1. Press Windows > Search Windows Event Viewer > Open it.
  2. Then expand the Windows log, and select the System.
  3. Next, you will get a Find option from the right box. Click on it.
  4. And find for Memory Diagnosis.
  5. You will get the result of the Memory diagnosis. However, if you find any issues, event viewer help you troubleshoot.

6. Update Windows

In general, keeping the system on the latest Windows version is useful for every aspect of the system, not only the error can’t open AsIO3.sys error code 433. So you can try it out.

  1. Press Windows > Settings > Windows update.Windows Update
  2. It shows all unfinished updates. Otherwise, click on Check for updates.Check for updates
  3. If you get any updates, then download and install it immediately. Ensure that you are up to date at the end.

Final Words

Signing off – that’s everything you need to know what is AsIO3.sys error and how to fix AsIO3.sys error in Windows 11/10. If you are still struggling to fix it, let us know the problem you are facing.


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