How to Fix Windows Update Install Error 0x80070643?

Are You Bothered by Windows Update Error 0x80070643?

Performing a Windows update makes you use the new features in the new version of Windows and get rid of the bugs that were in the previous version. However, the Windows update is not a successful process all the time. You may encounter different kinds of Windows update errors like error code 0x8024000B, error code 0xc1900107, Windows Update Cannot Currently Check for Updates, error 0x80070643, and more.

We have talked about many Windows updates errors except for Windows 10 update error code 0x80070643. Now, we will show you more information about this error.

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About Windows Update Error 0x80070643

This error code 0x80070643 always happens when you install or update your Windows OS or any app on your computer. The error message may differ. But you can always see the error code 0x80070643 behind the error message.

For example, the full error message can be:

1. 2018-11 Update for Windows 10 Version 1803 for x64-based Systems (KB4023057) – Error 0x80070643.

OR

2. There were some problems installing updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80070643).

OR

3. There were problems installing some updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information, this may help:

Definition Update for Windows Defender – KB2267602 (Definition 1.213.1379.0) – Error 0x80070643.

OR

4. The following error code 0x80070643 happens when you want to install a program:

One or more issues causes the setup to fail. Please fix the issues and then retry setup. For more information see the log file.

0x80070643 – Fatal error during installation.

Of course, some other error messages also come with the error 0x80070643. We will not list all of them here as space is limited.

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What Causes Error Code 0x80070643?

The reasons for Windows error code 0x80070643 are various. Here are some main causes:

• The system settings are not correct.
• Your computer is attacked by malware or viruses.
• There is a driver malfunction.
• Some system files are corrupted or missing.
• Some old programs are not correctly removed.
• Your computer is not shut down properly.
• And more.

Knowing these reasons can help you find the best solutions. We collect some useful solutions and show you them as follows.

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Update! KB5034441/KB5034440 Fails with 0x80070643 Error Code

Recently, many users reported the error of 0x80070643 – ERROR_INSTALL_FAILURE when installing KB5034441/KB5034440 in Windows 10/11. According to the feedback from MiniTool users, this issue is caused by insufficient space in the WinRE partition. To remove the error, you need to extend the recovery partition.

Now let’s explore more information:

Reasons for 0x80070643 – ERROR_INSTALL_FAILURE when Installing KB5034441/KB5034440

The update requires 250 MB of free space in the recovery partition (WinRE partition) to install successfully. However, if there is insufficient free space, the update will fail, and you will receive the following error message:

0x80070643 – ERROR_INSTALL_FAILURE

To get rid of the update install error 0x80070643, you can extend the WinRE partition.

One tip: You do not need to install this update if your PC does not have a recovery partition.

How to Extend the WinRE Partition?

Way 1: Use MiniTool Partition Wizard

MiniTool Partition Wizard is a professional partition manager. It offers numerous features to help you make full use of the data storage drive. To extend the recovery partition, you can use the Extend Partition feature.

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However, it is advisable to first back up the recovery partition to prevent unexpected damage. Learn how to back up a partition using MiniTool ShadowMaker.

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Once you have backed up the recovery partition, you can feel free to extend the recovery partition using MiniTool Partition Wizard. Since you’ll be operating on a system disk, it’s recommended to use the MiniTool Partition Wizard Boot Disk for this task.

After creating a MiniTool Partition Wizard bootable USB drive, you need to set your PC to start from the bootable USB and then utilize the Extend Partition feature to extend the recovery partition. However, if there is an MSR partition, you will be unable to extend the recovery partition using this software. To solve the problem, you can delete the MSR partition using the Delete Partition feature.

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Way 2: Use Command Prompt

If you are an advanced user, you can also run commands in Command Prompt to extend the recovery partition. Please make sure that there is a recovery partition after the OS partition.

Step 1. Run Command Prompt as administrator.

Step 2. Run reagentc /info to check the status of the WinRE partition. If the WinRE partition is installed, there should be a Windows RE location with a path to the WinRE directory. For example, you might see “Windows RE location: [file://%3f/GLOBALROOT/device/harddisk0/partition4/Recovery/WindowsRE]\\?\GLOBALROOT\device\harddisk0\partition4\Recovery\WindowsRE”. The number after harddisk and partition is the index of the disk and partition WinRE is on.

Step 3. Run reagentc /disable to disable the WinRE.

Step 4. Run the following commands to shrink the OS partition and prepare the disk for a new recovery partition:

diskpart

list disk

sel disk<OS disk index>

list part

sel part<OS partition index>

shrink desired=250 minimum=250

sel part<WinRE partition index>

delete partition override

Step 5. Run the following commands to create a new recovery partition:

1). list disk (If there is an asterisk character (*), then the drive is GPT. Otherwise, the drive is MBR.)

2). Choose one of the following two commands as per your situation:

• If your disk is GPT, run create partition primary id=de94bba4-06d1-4d40-a16a-bfd50179d6ac , then gpt attributes =0x8000000000000001
• If your disk is MBR, run create partition primary id=27

3). format quick fs=ntfs label=”Windows RE tools”

4). list vol

5). exit

Step 6. Run reagentc /enable if you want to re-enable WinRE.

Step 7. Run reagentc /info to check where WinRE is installed.

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Way 3: Use PowerShell Script

Microsoft has created a sample PowerShell script designed to assist in automating the update process for the Windows Recovery Environment (WinRE) on deployed devices. You can also use it to get rid of the update install error 0x80070643 in Windows 11 and Windows 10.

Step 1. Go to Microsoft Update Catalog and then search for Safe OS Dynamic Update.

Step 2. Select a proper one according to the Windows version you are running and then download it. You’d better download the latest version.

Step 3. Manually install this update on your device.

Then, it’s time to run the PowerShell script.

Step 4. Go to this page to copy and paste the suitable Script to a text file.

Step 5. Save the text file with a .ps1 extension.

Step 6. Right-click the file and select Run with PowerShell.

If these three solutions cannot help you fix the 0x80070643 – ERROR_INSTALL_FAILURE error, you can proceed with the following methods introduced in this article.

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More Fixes for Error Code 0x80070643 on Windows?

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Fix 1: Retry the Windows Updates or the Program Installation

At times, this error only lasts for seconds due to some unknown reasons. You can just try again to see whether the error disappears. If this method works, everything will be OK. If not, you need to use other solutions to solve the issue.

Fix 2: Re-download the Update or Installation Files

If you update your Windows or a program on your computer by downloading the update sources and encounter this error code, the downloaded installation files may get corrupted. Don’t worry. This issue can be easily fixed. You can re-download these files and then update your Windows or the program again.

Fix 3: Reinstall the Program

If you encounter this error 0x80070643 during a program update process, you can reinstall the program to get the latest version. To guarantee the effect, you need to uninstall the program from your computer and then go to the official site of the program to download the latest setup file. Next, you can double-click the downloaded setup file to reinstall the program on your computer.

Fix 4: Check Your Internet Connection

Some software update/installation needs a network connection to an online server. If your network connection encounters issues, error 0x80070643 can easily happen. For example, you need to make sure your network has a good speed during the update/installation process.

Fix 5: Close All other Programs that Are Currently Running

Other running programs on your computer can also affect your Windows update or program installation because they are using some important files and device sources. You can close all other running programs on your computer. You also need to go to the Task Manager to end the programs that are running in the background when necessary.

Fix 6: Pause other Downloads and Updates on Your PC

Other programs downloads and updates tasks on your computer can be conflicted with the program update you want to perform. You’d better execute one task at a time to avoid conflicts.

You can go to Microsoft Store > 3-dot menu > Downloads and updates to check whether there are other updates taking place. If yes, you can pause them temporarily and then try your installation/update again. Remember, you should not start another task unless the current one ends.

Fix 7: Restart Your Computer

Restart your computer can fix some glitches on your device. These glitches can be some corrupted files generated by software uninstallation. They can also be some errors that influence your computer performance. You can just restart your computer to run the device under a clean state.

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Fix 8: Run the Windows Update Troubleshooter

The Windows Update troubleshooter can find and fix the issues you encounter during the updates process. Here are the steps:

1. Click Start.
2. Go to Settings (the gear button) > Update & Security > Troubleshoot > Additional troubleshooters.
3. Click Windows Update.
4. Click the Run the troubleshooter button.
5. Let the tool find issues and then fix them.

Fix 9: Install the Latest .NET Framework

The .Net Framework plays an important role in the Windows updates. If it is corrupted or missing, error 0x80070643 can happen. You also need to make sure that you are using the latest .Net Framework. You can go to this page to get the latest .Net Framework and install it on your computer.

Fix 10: Rename the SoftwareDistribution Folder

You can follow this guide to rename the SoftwareDistribution folder:

1. Run Command Prompt as administrator.
2. Type the following commands and press Enter after each.

net stop wuauserv

net stop bits

rename c:\windows\SoftwareDistribution SoftwareDistribution.bak

net start wuauserv

net start bits

Fix 11: Clear Contents in the Catroot2 Folder

1. Run Command Prompt as administrator.

2. Type the following commands and press Enter after each:

net stop cryptsvc

md %systemroot%\system32\catroot2.old

xcopy %systemroot%\system32\catroot2 %systemroot%\system32\catroot2.old /s

3. Type the following command and press Enter:

net start cryptsvc

Fix 12: Temporarily Disable Your Antivirus Software

Antivirus software can prevent your computer from being attacked by viruses and malware. As mentioned above, the error code 0x80070643 can be caused by viruses and malware. You can first use your antivirus software to scan your computer for viruses and malware.

However, if the results show that your computer is safe, you need to consider whether there are conflicts with app installation and system functions generated by your antivirus software. To rule out this possibility, you can temporarily disable your antivirus software and then check whether the issue disappears.

Fix 13: Run an SFC Scan

An SFC scan can find and fix corrupted system files on your computer. This method is worth trying.

You can run Command Prompt as administrator, type sfc /scannow, and then press Enter.

Fix 14: Manually Install the Windows Updates

If your Windows can’t automatically update due to error code 0x80070643, you can manually update it.

1. Go to Start > Settings > System > About to check which system type you are using (it is 64-bit or 32-bit).

2. Go to Start > Settings > Update & Security to check the code of the failed update, like KB4023057.

3. Go to this Microsoft Update Catalog page to search the code you get in the last step.

4. Select the corresponding update to download.

5. Double-click the downloaded file to manually install the update.

Fix 15: Manually Update Windows Defender

If you see this error code when automatically update Windows Defender, you can manually update Windows Defender to have a try.

Fix 16: Update Windows in Clean Boot

A clean boot can make your computer run a minimal set of drivers and startup programs. In this state, you can update your Windows without the disturbance of other programs that can cause error 0x80070643. So, you can just clean boot your computer, and then update your Windows.

If you can’t update your Windows or a program due to error 0x80070643, you can try the methods mentioned in this article to help you out.Click to tweet

What if You Lose Files after Windows Update?

Files get lost after Windows update is not a rare issue. Many users have reflected this problem on the internet and they also want to find a way to get back their lost data. If you are also bothered by this issue, you can try MiniTool Power Data Recovery, a professional data recovery software.

You can first try the free edition of this software to scan the drive you want to restore data from. This can help you check if this data restore tool can find the needed files. If you want to use this software to recover your files, you can use a full edition to do it.

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It is very easy to use this software. With some simple clicks, you can find your lost files:

1. Download and install this software on your computer.

2. Select the drive you want to recover data from.

3. Click Scan to start the scanning process.

4. After scanning, you can go to find your needed files from the scan results.

5. When you want to recover files using this software, you need to upgrade it to a full edition and then check the files you want to retrieve.

6. Click Save and select a suitable folder to save the selected files. The destination folder should not be the original folder of the lost files. Otherwise, the lost files can be overwritten and become unrecoverable.

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Bottom Line

It is not a difficult job to fix Windows error 0x80070643. You can see there are so many easy solutions. We hope you can find what you need in this article. Should you have other related issues or you have other good solutions, you can let us know in the comments. You can also contact us via [email protected]. We will reply to you as soon as possible.

Error 0x80070643 FAQ