How to Fix the Error 0x800705AA on Windows 10/11

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Windows updates introduce new features and improvements that may require more advanced resources, causing error codes to appear if the requirement is not met.

One such error is the 0x800705AA. What is it and what causes this error code to surface? Find out more in this article.

What is Error 0x800705AA on Windows 10/11?

The error 0x800705AA is associated with the Windows Update utility. Though there are many potential culprits that could trigger its appearance, it is commonly associated with incorrect system configuration settings and invalid Windows Registry entries.

When you come across this error, it is likely that you can’t proceed with a Windows Update download or installation.

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What Causes Error 0x800705AA on Windows 10/11?

So, what triggers the error 0x800705AA to show? In most cases, when the Windows Update utility continues to fail searching or to install updates, the possible culprits are:

Identifying when, where, and how the error surfaced is critical in resolving it. Regardless of what’s causing the error to show, it is relieving to know that it can be fixed. Read on to find out what solutions have worked for other Windows users affected by the same error code.

What to Do About Error 0x800705AA on Windows 10/11?

Follow the solutions below to fix the error 0x800705AA on your Windows PC. Although you can randomly try whichever you think is more effective, for beginners, we suggest that you go through our recommended fixes from top to bottom to save time.

But before you even begin, make sure you have done these things:

  • Disconnect any external peripherals that are attached to your device. This includes USB drives, headsets, or speakers.
  • Uninstall any SD card on your system.
  • Be sure there is sufficient space on your hard drive. Ideally, an update requires at least 10 GB of free space.

After checking the above prerequisites, you may proceed with our recommended fixes:

Fix #1: Uninstall and reinstall your internet security suite

Are you using an internet security suite? If you are, then you may want to uninstall and reinstall it and see if the error is resolved. Here’s what you should do:

  1. Go to the Start menu and select Programs and Features.
  2. Find your internet security suite and click Uninstall/Change.
  3. Follow the onscreen prompts to proceed with the uninstallation process. Hit Okay once done.
  4. Reboot your PC.
  5. Now, reinstall the internet security suite.
  6. Try to install the Windows update again.

Fix #2: Remove any corrupted Windows Registry entry

If you suspect that a corrupted Windows Registry entry is keeping you from installing a Windows update, then we suggest you do the following:

  1. Make sure you have a backup of your Windows Registry files.
  2. Press the Windows + R keys to launch the Run utility.
  3. Into the text field, input regedit and hit Yes to proceed.
  4. Next, go to this location: HKEY LOCAL MACHINE>>SOFTWARE>>Microsoft>>Windows>>Current Version>>Uninstall.
  5. Locate the failed update file and click on it.
  6. Double-click on the UninstallString icon next to it.
  7. Copy the text being highlighted.
  8. Exit the Registry Editor.
  9. Go to the Cortana search box and paste the data.
  10. Click Okay to proceed.
  11. Reboot your PC and check if the error persists.

Fix #3: Clear your system of junk files

If you haven’t cleaned your system for quite some time now, then there is a chance that it has accumulated a number of junk files. Regular web browsing activities and the installation of applications can result in the slowdown of your PC and insufficiency of memory. Combine this two, you may get the error code 0x800705AA.

So, how do you resolve the problem? You can use the in-built Disk Cleanup Tool on your system or you can use a third-party hard drive clean-up tool that can perform the job properly and flush away the most stubborn junk items on your system.

Fix #4: Get rid of malware entities on your PC

How do you know if your PC is infected with a malware entity? For one, you may find some commonly used applications misbehaving. You may also come across the error code 0x800705AA.

Malware infections can be acquired through frequent internet browsing or connecting to unencrypted Wi-Fi networks. They could also come bundled with freeware programs that have been downloaded from untrustworthy sources.

To ensure no malware entity wreaks havoc on your system and cause error codes to show, download and install a trustworthy antivirus program from reputable sources.

Fix #5: Use the System File Checker

With the System File Checker, you can perform a quick audit of all your system files, especially those that are needed by your system to run. When one is missing or corrupted, this tool can help restore them.

To use it, follow these steps:

  1. Open an elevated Command Prompt by right-clicking on the Start menu and selecting Command Prompt (admin).
  2. Into the command line, input the following command and hit Enter: DISM.exe /Online /Cleanup-image /Restorehealth.
  3. At this point, you may have to wait for the process to complete. Once done, enter this command: sfc /scannow.
  4. Your system will now scan all your files. If an anomaly or issue is detected, it will automatically fix and replace the compromised entity.
  5. Restart your PC and check if the error 0x800705AA still appears.

Fix #6: Perform a System Restore

If none of the above solutions worked, you may have to perform a System Restore. This will allow you to go back to a time when your device was error-free. The best part of it is it won’t affect any of your personal data.

Here’s how to perform a System Restore:

  1. Go to Control Panel and select System and Security.
  2. Select System.
  3. Navigate to System Protection.
  4. On the System Properties window that pops up, click on the System Restore button.
  5. Choose the Recommended Restore option for a hassle-free process.
  6. Select a restore point. Make sure you choose a restore point when your system was free of errors.
  7. Proceed by clicking Next.
  8. Hit Finish.
  9. Restart your PC.


Congratulations! We’re hoping that you have already fixed the error 0x800705AA with our recommended fixes. You may now proceed with installing the pending Windows Update and try its new features. If, at this point, the error still surfaces, then do not hesitate to seek professional help or contact Microsoft’s online support team.

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