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This update includes reliability enhancements to the Windows Update Service components under Windows 10, versions 1507, 1511, 1607, 1607, 1703, 1709, 1803 and 1809. Steps can be taken to free up disk space on your device if you do not have enough disk space to install Windows updates.
This update contains files and resources that fix problems that affect the Windows 10 update process and may prevent you from installing important Windows updates. These improvements help to ensure a seamless installation of updates on your device and improve the reliability and security of Windows 10 devices.
About this update
- This update may cause your device to stay awake longer to allow updates to be installed.
Note: The installation includes all custom sleep configurations as well as your “active hours” if you use your device most often.
- This update may attempt to reset your network settings if problems are detected and clean registry keys that could prevent a successful installation of updates.
- This update can repair disabled or corrupted Windows operating system components that determine the applicability of updates to your version of Windows 10.
- This update can compress the files in the directory of your user profile to provide enough disk space to install important updates.
- This update can reset the Windows Update database to solve problems that could prevent a successful installation of updates. As a result, you may find that your Windows update history has been deleted.
Important information about low disk space devices
If an update of Windows feature is available for your device, a message may appear on the Windows Update Settings page or elsewhere asking you to free up disk space by deleting files or applications that you do not use regularly. If this message appears, select Fix problems to free up disk space on your device.
After installing the Windows update, some users may be prompted to restart their device. For more information on other ways to free up hard disk space on your device, see Free up drive space in Windows 10.
Compression of files
To free up disk space, this update can compress files in the directory of your user profile so that Windows Update can install important updates. When files or folders are compressed, they seem to have two blue arrows on the icon. Depending on the settings in the File Explorer, you may see icons that appear larger or smaller. The following screenshot shows an example of these icons.
After installing the update, your files are restored to their original state and the blue arrows disappear from the file icons in the file explorer. You should be able to access your files at any time during the update process.
Microsoft Support Notification
This update can display a notification on devices with limited space. When this notification is selected, a Microsoft support URL opens in the default browser with Microsoft support contact options, so you can easily get help to make room on your device.
Once this update is installed, you will have new options to clean the disk space to make it easier to update your device if it has little space on your hard disk. If a feature update fails due to a small amount of disk space, you can help increase disk space by using the Disk Cleanup tool or by selecting “Free up space now” in Settings / Storage. This will help you delete unused files and free up space before upgrading to a major feature update.
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