Error Code 0X80071A90 | 5 Easy Ways To Fix

Windows Error Code 0X80071A90 is a common error seen on computers running Windows 10. The error can appear when a user is performing simple tasks by launching certain programs. The main reason for error code 0X80071A90 to appear is when certain files that Windows needs to use are already being used by another program. An example of when this can occur is when an antivirus program is scanning the system, and has locked out certain Windows files. That is when a user will see error code 0X80071A90 on their screen.


The error message that accompanies this error is: The function attempted to use a name that is reserved for use by another application. error code: 0x80071a90.


You can try resolving Windows Error code 0X80071A90 by yourself by trying out the different methods that we have suggested here. Apart from these, we highly recommend that you try out our installer that will allow you to restore your system by fixing all errors with one quick scan.

Method 1: Run the Windows Update Troubleshooter

The Windows Update Troubleshooter is used to help detect any errors with running a Windows update. You can run the Windows Update troubleshooter by following the steps below:

  1. Click the Windows button on the taskbar and click the Settings icon to open the Control Panel.
  2. Use the Search option in the Control Panel to enter the word Troubleshoot.
  3. From the search results, select the Troubleshoot option that lets you navigate to Windows Update.
  4. Choose the button to Run the troubleshooter. You can run this as administrator by entering your credentials when you are prompted.
  5. Follow the onscreen directions to complete troubleshooting the Windows Update feature.

Method 2: Use the computer in Safe Mode

Using your computer in Safe Mode can restore temporary functionality to your PC. You will be able to use certain programs and then take corrective measures to regain control over your system.

  1. Run Windows using an administrator access.
  2. On the main screen, hold down the keys Win + R.
  3. In the Run dialog box, type in MSCONFIG and press Enter.
  4. In the System Configuration box, navigate to the Boot tab and check the Safe Boot option.
  5. Click OK to close the dialog box. You will now be prompted to restart the computer in Safe Mode.


Method 3: Perform a clean boot

You can use this option when the system error is preventing you from being able to use your PC as you normally would. A clean boot allows you access to your programs and files by using a minimal set of drivers and programs.

  1. Use an administrator account to launch Windows.
  2. On the main screen, hold down the keys Win + R.
  3. In the Run dialog box, type in MSCONFIG and press Enter.
  4. Or Search System Configuration in window bar
  5. Then navigate Services tab inSystem Configuration dialog box,  .
  6. On the Services tab, select the Hide all Microsoft services option. This will only show you the non essential services that are running. Click Disable all to disable these services.
  7. Now go to the Startup tab of the System Configuration dialog box and click Open task manager.
  8. In the Task Manager dialog box, go to the Startup tab and Disable all the items listed there.
  9. Now, exit Task Manager to go back to the System Configuration manager and click OK.
  10. When the computer reboots in clean boot, you can try running your application as before.

Method 4: Disable all antivirus programs

As mentioned before, error code 0X80071A90 appears when an antivirus program uses files that Windows requires. This can interfere with system functions making it difficult to proceed. In these cases, you should disable your antivirus programs. Based on the manufacturer specifications, you can select the right method to disable them and see if that helps resolve the problem.

Method 5: Check system files

The system file checker tool can help detect any system errors and allow you to continue using your computer normally. You should check your system files in case you see error code 0X80071A90 pop up on your system.

  1. Right click on the Windows or Start button and choose Run.
  2. Type cmd into the Run dialog box to launch Command Prompt. It is important to run this as administrator.
  3. In the Command Prompt window, type sfc /scannow and click the Enter key.
  4. Now windows will scan entire system to detect for any errors in the system files.


The Windows error code 0X80071A90 can be frustrating to users who are trying to install components of Net Framework 3.5 on their computer. By following these  steps listed above, you can try to attempt resolving the error on your own. In case you need more help with this or other Windows errors, please reach out to us today.

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