Windows 10 KB5035845 update won’t Download or keep failing (Solved)

There are several possible causes for the update failure, such as a poor internet connection, interference from security programs, insufficient disk space, or corrupted system files. If you are unable to install the Windows 10 Update on your system then this post may help you

If you are trying to install the Windows 10 KB5035845 update, but it won’t download or keeps failing, you are not alone. Several users report, that Windows 10 KB5035845 Failed to install, “There were problems installing some updates, but we’ll try again later” or “Error 0x80073701″. Windows 10 KB5035845 is the latest update release and is part of the March 202 patch Tuesday update, which is supposed to fix some security and performance problems. There are several possible reasons why Windows updates won’t download or keep failing. Corrupted or missing system files, Insufficient disk space, Network connection issues, and Antivirus blocking are common. In this article, we explore some effective methods to resolve the Windows 10 KB5035845 update failure.

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Windows 10 updates won’t Download

If Windows updates won’t download or keep failing, there could be various reasons behind this issue. One of the most common reasons for update failures is insufficient disk space. Ensure that your device has enough free space to accommodate the updates.

Unstable or slow internet connections can cause problems during the download or installation of updates. Make sure your internet connection is stable.

Corruption in the Windows Update components can lead to update failures. Antivirus or security software can interfere with the update process. Temporarily disable or configure your security software to allow Windows updates.

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Depending on the cause of the problem, there are different solutions that you can try to fix the Windows 10 KB5035845 update failure. Here are some of the most common and effective ones:

Check Internet connection

Let’s start with the basics, check and make sure you have a working internet connection to download Windows update files from the Microsoft server.

Tip: You can run the ping command ping -t to check your internet connectivity.

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Sometimes Windows updates may fail or the system can’t apply the latest updates due to the interference of third-party antivirus software. Let’s temporarily disable your antivirus and disconnect from VPN (if configured on your system) and check if the problem persists.

You can use a speed test tool to measure your download and upload speeds. If your connection is slow or unstable, try restarting your router or modem, or switching to a wired connection instead of Wi-Fi.

Also, you should restart your PC/Windows 10 and check for Windows updates again, that probably fixes the problem if a temporary glitch causes the issue.

Free up some disk space

The update may fail if you don’t have enough free space on your system drive. To free up some space, you can use the Disk Cleanup tool to delete unnecessary files, such as temporary files, recycle bin items, or old system restore points. You can also uninstall any programs or apps that you don’t use anymore.

  • To access the Disk Cleanup tool, go to Start > Settings > System > Storage > Temporary files. Select the files you want to delete and click Remove files.
  • To uninstall programs or apps, go to Start > Settings > Apps > Apps & features. Select the program or app you want to uninstall and click Uninstall.

Windows update troubleshooter

Windows 10 comes with a handy Windows Update Troubleshooter that can help automatically troubleshoot and fix issues with your Windows Update. Run the Windows update troubleshooter, and let Windows detect and fix the problems to prevent Windows update installation.

  • Press Windows key + I to open Settings,
  • Click on update and security then Troubleshoot,
  • Click the link “Additional troubleshooters”
  • Select Windows update, then click Run the troubleshooter.

Windows update troubleshooter

This will start to diagnose, and check the problem that prevents Windows update installation. Also, the troubleshooter lets you know whether it could identify and fix the problem. Once done, restart your PC and check again for Windows updates.

Reset Windows update components

Again sometimes Windows 10 Update may fail to install or stuck downloading 100 on your PC because its components are corrupted. These Windows update components include the services and temporary files and folders associated with Windows Update. Most of the time resetting Windows update components resolves the number of issues/errors with Windows updates.

To do this first we need to stop the Windows update service:

  • Press Windows key + R, type services.msc and click ok,
  • Scroll down and locate the Windows update service, right-click on it, and select stop.

Let’s clear temporary files and folders associated with Windows Update.

  • Open file explorer using Windows key + E,
  • Navigate C:\Windows\SoftwareDistribution\Download
  • Delete all files and folders inside the download folder, to do this use the keyboard shortcut Ctrl + A to select all the use the delete key.

Clear Windows Update Files

Note: Don’t worry about these files, Windows updates download fresh ones when next time check for updates.

Now again open the Windows service console using services.msc and start the Windows update service.

Perform a Clean Boot

Another possible solution is to perform a clean boot, which means starting Windows with only the essential services and programs. This can help you identify and eliminate any software conflicts that may interfere with the update process

  • Press the Windows key + R and type msconfig in the Run box. Click on OK.
  • In the System Configuration window, go to the Services tab and check the box that says Hide all Microsoft services. Then click on Disable all.

Hide all Microsoft services

  • Go to the Startup tab and click on Open Task Manager.
  • In the Task Manager window, go to the Startup tab and disable all the items that are enabled. Close the Task Manager window.
  • Go back to the System Configuration window and click on Apply and OK.
  • Restart your device and try to download and install the update again.

Run DISM command

It’s also possible that your Windows Update can’t work because of the corrupted files on your operating system. To fix this, you can use the System File Checker (SFC) tool to scan and repair your system files.

  • Open the command prompt as administrator,
  • Type sfc /scannow and press Enter, Wait for the scan to finish
  • Next, run DISM command dism /online /cleanup-image /startcomponentcleanup
  • Wait a few minutes let the scanning process complete and restart windows.
  • Now check for updates again.

Switch Google DNS

Still, Windows 10 KB5035845 update won’t download or keeps failing with different error codes. Switching to public DNS or Google DNS probably help fix the problem. This improves the chances of establishing a successful connection to the Windows update servers, resolving any errors caused by DNS-related issues.

  • Press Windows + R type ncpa.cpl and click ok,
  • Right-click on the active network adapter select properties,
  • Select Internet Protocol version 4 (TCP/IPv4) then click properties,
  • Here select the radio button “use the following DNS server addresses” and set the preferred DNS server: and Alternate DNS server:
  • Checkmark on Validate Settings upon exit, click ok and apply
  • Now again check for updates.

Assign DNS address

Manually install Windows update

Still, Windows Update can’t help you download certain system updates. Try doing so on your own. Microsoft has put all its system updates online, and you can download these updates and install them on your computer without the help of Windows Update.

  • On a web browser visit Microsoft Update Catalog.
  • Search for the update using its Knowledge Base reference number (KB number). For example, KB5035845.
  • Click the Download button for the version of Windows 10 you are using.
  • You can find your system configuration under ‘System type’ on Settings > System > About page.
  • A pop-up window will appear after the download button is triggered.
  • Click on the .msu file to download it.

Finally, double-click a .msu file to install the update manually and a system reboot is required to finish the installation.

If you are having a problem upgrading to Windows 10 version 22H2 or the Windows 10 feature update fails to install then you can perform an in-place upgrade to Windows 10 version 22H2 with Media Creation Tool or Update Assistant tool.

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