Every time when a new Windows update is available for your system, you’ll get a notification in the Windows Update settings. You can choose to install the update or not and decide the time to update. What attract the attention of MiniTool are the cases of Windows update failure. Some people said their Windows update failed to install and they don’t know why.

Microsoft issues updates regularly to fix bugs, add new features, and improve system performance. Users are advised to download and install the new updates to their computer every time when they are available. However, the question is some people complained they can’t update Windows successfully. What happens when Windows update failed to install? What are the main reasons for causing this problem? If you’re interested in questions like these, this is the right place to find your answer.

Windows Update Stuck Or Frozen? Here Are 8 Ways To Fix It.

Tip: It’s strongly recommended that users make a backup of the system (or at least the files important for them) before starting to perform a Windows update. In this case, they can recover the system and data easily if Windows failed to update unfortunately. For users who run into failed Windows updates before backing up, they should go to recover the lost data with powerful software first. Click here to learn how to recover files after Windows update.

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How to check for updates Windows 10:

Please go to Settings -> Update & Security -> Windows Update and click on the Check for updates button. However, you don’t always succeed: Windows update cannot check for updates or cannot upgrade is a common issue. Many reasons could cause this to happen, for instance, Windows update can't check for updates because the service is not running. You should read the following links to know more about what to do when you’re in face of certain Windows update errors.

Why Windows Update Failed to Install: 6 Main Reasons

Windows update keeps failing on your PC? You should know it may be resulted from various factors. In this part, the most common reasons why your Windows update fail are introduced.

#1. Not Enough Disk Space

Why Windows 10 update failed? One of the most popular causes is insufficient disk space. If the free space left on your disk is not enough for downloading & installing the new version of Windows OS, the process will be stopped. Windows can't update important files and services unless you clear the hard disk to get more free space.

Insufficient disk space

Low/insufficient disk space may lead to various problems, in addition to Windows updates failing. For example, the error message “There is insufficient disk space to complete operation” will show up while you try to copy a file/folder to a destination.

#2. Multiple Updates in the Queue

If you have multiple updates waiting to be installed on your computer, you should pick the ones used to polish critical system components to update first. For instance, you should install Servicing Stack Update whenever it’s available. Otherwise, it’s very possible that you’ll find all the following Windows updates failed to install.

In this case, you should restart your computer and try Windows update again.

#3. Corrupt System Files

If the system files needed for your OS to work properly are corrupted or missing due to certain reasons, major consequences for the entire system may be caused, including failed Windows update. When running into such problem, you should perform a System File Checker (SFC) scan to clear or repair the corrupted/missing system files.

How To Repair Corrupted Or Missing System Files On Windows 10
How To Repair Corrupted Or Missing System Files On Windows 10

Problems will show up on your computer if the system files are missing or corrupted, so I’d like to teach you how to repair system files.

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#4. Conflicts

You may find your Windows 10 upgrade failed if any driver conflicts and hardware conflicts are detected.

  • Drivers are needed by the system to handle components that don’t natively come with system compatibility. If one or more drivers on your PC are outdated (not updated in a while), the Windows update process may be affected.
  • If one or more devices that are not compatible with your system are connected while you’re trying to update Windows, they may interrupt the update process.

Please try to update all drivers on your PC and disconnect all unnecessary peripherals; then, try to install Windows update again.

Windows 11 Update Is Not Working: How To Solve The Problem
Windows 11 Update Is Not Working: How To Solve The Problem

This page will introduce 2 situations of Windows 11 update not working and provide corresponding solutions to fix the issue.

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#5. Windows Update Service Issues

If the Windows 10 updates keep failing, you should suspect that there’s something wrong with the update service itself. The Windows Updates service is an important component on your PC; it’s responsible for automatically checking, downloading, and installing updates. If the Windows Updates service runs into problem (for instance, the update service is not running), your Windows update will be interrupted. You have no choice but to find alternative ways to download the latest Windows 10 updates.

How to troubleshoot common Windows 10 update problems?

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