How to fix Microsoft Store error 0x80240066?

Question

Issue: How to fix Microsoft Store error 0x80240066?

Hello, I was trying to install a new app from Microsoft Store, and the installation failed almost immediately. I instantly tried it again and received the same error code – 0x80240066. Please help me fix this error because I really need the app from the Store. Thanks.

Solved Answer

Microsoft Store is a built-in application that can be extremely useful for users. It allows not only updating already installed applications but also searching for new ones and installing them. The feature is useful because users do not need to resort to visiting third-party websites to download software, reducing the chance of malware infections and other risks.[1]

Unfortunately, Microsoft Store errors are not uncommon when using it, and 0x80240066 is one of the errors that users encounter while trying to download new apps or update the installed ones. The message shown by Windows does not provide any insights on the issue and reads as follows:

Something unexpected happened

Reporting this problem will help us understand it better. You can wait a bit and try again or restart your device. That may help.

Code: 0x80240066

Most users listen to the advice and restart their device, attempting to download or update the app once again. This does not help for most people, however, so they start looking for ways to fix the 0x80240066 error code in Microsoft Store.

This issue can affect multiple different apps – from the convenient Quick Assist to the widely popular games such as Minecraft. It can be a real problem for users, as some of these apps are utilized for remote work, for example.

There are plenty of reasons why one might encounter the error – from store file corruption to an unstable internet connection. Thus, there are several methods to deal with this error, and we provide plenty of solutions below, so please try them one by one and see which one works for you.

How to fix Microsoft Store error 0x80240066?

Also, you could try using our automatic solution with ReimageMac Washing Machine X9. Running a scan with repair software can quicken the remediation process quite a bit; it can also remove already installed malware,[2] clean the system from junk and tracking cookies,[3] and resolve the most commonly-encountered Windows issues regardless of the root cause.

Fix 1. Run Windows Store Apps troubleshooter

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

Starting with the Store app troubleshooter can give you a good start.

  • Type Troubleshoot in Windows search and press Enter
  • Click Additional troubleshooters if you can't see them listed
  • Scroll down to find Windows Store Apps
  • Click and select Run the troubleshooter
  • Apply the offered changes and close down the troubleshooter – see if that helps solve your problem.

Run troubleshooter

Fix 2. Reset Microsoft Store cache

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • In Windows search, type wsreset.exe and press Enter
  • Wait till a black window shows up – do not close it
  • Once it's gone, Microsoft Store should restart
  • Try using the Store again.

Reset Store cache

Fix 3. Reset the Microsoft Store app

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

The previous method can help you reset the cache, but the problem might be within the app itself. Therefore, resetting it can also be a good idea when dealing with the 0x80240066 error.

  • Right-click on Start and pick Apps & Features
  • Scroll down to locate Microsoft Store and click Advanced options
  • Click Terminate and Repair
  • If that does not help, try the Reset option instead.

Reset MS Store

Fix 4. Check for a system for corruption

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

Corrupted system files could create several issues on your system, so make sure you repair them by running some commands via an elevated Command Prompt.

  • Type in cmd in Windows search and press Enter
  • Right-click Command Prompt result and select Run as administrator
  • When User Account Control shows up, click Yes
  • Use the following command and press Enter:
    sfc /scannow
  • Reboot your system
  • If SFC returned an error, then use the following command lines, pressing Enter after each:
    DISM /Online /Cleanup-Image /CheckHealth
    DISM /Online /Cleanup-Image /ScanHealth
    DISM /Online /Cleanup-Image /RestoreHealth
  • Close down Command Prompt and check if the issue is resolved.

Run SFC and DISM

Fix 5. Install all available Windows updates

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Type Update in Windows search and press Enter
  • On the right side of the window, click Check for Updates
  • Wait till all the files are downloaded and installed
  • Install all the optional updates as well
  • Restart your device once done.

Update Windows

Fix 6. Reinstall Microsoft Store

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Make sure your Microsoft Store is closed and not running in the background
  • Right-click on Start and select PowerShell (Admin)
  • Paste the following command and press Enter:
    Get-AppXPackage *Microsoft.WindowsStore* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}
  • Close Powershell.

Fix 7. Reset your internet connection

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

Sometimes, the update or installation process of software may fail due to poor or inconsistent internet connection. Try resetting it as follows:

  • Type cmd in Windows search and hit Enter
  • When User Account Control shows up, click Yes
  • Copy and paste each of the following commands, pressing Enter every time:
    ipconfig /flushdns
    ipconfig /registerdns
    ipconfig /release
    ipconfig /renew
    netsh winsock reset
  • Restart your system.

Reset internet

Other useful tips:

  • If you haven't done so, restart your system and see if that helps you fix the store error.
  • Run a scan with anti-malware and remove malicious software from your device.
  • If you are using third-party security software, VPN, Firewall, or similar apps, disable or uninstall them temporarily and see if that solves the issue.
  • Ensure your time and date settings are correct. Right-click the time on your taskbar and select Adjust date/time. Make sure the Set time automatically option is ticked, and then click Sync now below.

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Data recovery tools can prevent permanent file loss

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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