For expert users and IT pros accustomed to having fine-grained control over the update process, these changes might seem wrenching and even draconian. You can't pick and choose which updates to install? There's no option to delay updates on PCs running Windows 10 Home? Upgrades to new versions are mandatory? The new update rules are designed to solve some nagging problems in the PC ecosystem.
For example, if every user can choose some updates and reject others, the number of potential configurations approaches infinity; Microsoft argues that all those untested variations make effective quality assurance much more difficult. Likewise, Microsoft's generous year support lifecycle has enabled fragmentation in the installed base: Over the past decade, Microsoft's engineering staff have been required to support as many as five major versions at the same time.
In a world where security challenges arrive at breakneck speed, that fragmentation stretches support resources to the breaking point. And thus a new approach to Windows Update, whose goals are to have the majority of Windows users fully patched at all times, with only a few versions to support and an installed base that is mostly running one of the two most recent versions.
But pushback from frustrated customers resulted in major adjustments in and , with a new round of changes in For details on the most recent changes, see "Microsoft removes manual deferrals from Windows Update by IT pros 'to prevent confusion'. This FAQ covers the details you need to know, especially if you're the administrator in an un-managed environment.
All available security and reliability updates are included in a cumulative update and cannot be selected or rejected individually. That's a major change from previous versions and a big surprise to anyone upgrading to Windows 10 for the first time. Besides these cumulative updates, you might see servicing stack updates delivered separately.
These update packages fix issues in the code that Windows 10 uses to scan for and process updates. Security updates for Adobe Flash Player and definition updates for Windows Defender are also delivered as separate packages, not included in cumulative updates.
Hardware drivers and firmware updates can be delivered through Windows Update. Typically, these packages are provided only when the driver fixes a bug that causes instability on targeted systems.
For consumers and small businesses, both quality and feature updates are delivered via Windows Update. Organizations can use internal update management solutions, such as Windows Server Update Services, to distribute updates to computers on a corporate network. Feature updates are made available to business and home editions of Windows at the same time, in what Microsoft calls the Semi-Annual Channel. Until , there were separate servicing channels, also called branches , for home and business customers.
For details about this change, see "Windows Has Microsoft cleaned up its update mess? Spoiler: no ". Because of the enormous number of machines that receive Windows updates, Microsoft "throttles" update delivery to manage the load on its servers. As a result, it may take weeks or even months for a feature update to be offered to all of the hundreds of millions of devices in each servicing channel.
Quality updates are delivered at the same time to all supported Windows 10 versions. These cumulative updates arrive on the second Tuesday of each month, or Patch Tuesday, as it's widely known.
Microsoft officials refer to this day as Update Tuesday. Microsoft may deliver additional updates throughout the month, including cumulative updates and servicing stack updates. So-called out-of-band patches to address critical security issues may appear at any time, generally in response to reports that a Windows flaw is being actively exploited. As noted earlier, Microsoft releases cumulative updates on the second Tuesday of each month.
This is called the "B" release. During the third and fourth week of each month, you might see "C" and "D" releases. The action list describes all the files needed from Windows Update, and what the installation agent such as CBS or Setup should do with them. The action list is provided to the installation agent along with the payload to begin the installation. When the option to automatically install updates is configured, the Windows Update Orchestrator, in most cases, automatically restarts the device for you after installing the updates.
It has to restart the device because it might be insecure, or not fully updated, until it restarts. You can use Group Policy settings, mobile device management MDM , or the registry not recommended to configure when devices will restart after a Windows 10 update is installed. For more information, see Manage device restarts after updates. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy.
Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Important ServiceId here identifies a client abstraction, not any specific service in the cloud. Is this page helpful? Yes No. Any additional feedback? Note that after the pause limit is reached, you'll need to install the latest updates before you can pause updates again.
Next to Pause updates , select the pause length you prefer. To finish installing an update, your device will need to restart. Windows will try to restart your device when you're not using it. If it can't, you'll be asked to schedule the restart for a more convenient time. Or, you can schedule anytime by following these steps:.
Select Schedule the restart and choose a time that's convenient for you. You can set active hours to make sure automatic restarts for updates only happen when you're not using your device. Get updates when you're away from your PC with active hours in Windows. For more tips on freeing up disk space, see Free up drive space in Windows.
This way, if updates are installed outside active hours, your device will have enough power to complete the installation. An update history is available so you can see which updates were installed, and when. You can also use this list to remove specific updates, although we don't recommend this unless it's necessary.
View update history. However, if you must remove an update, you can do so in update history. Feature updates are typically released twice per year and include new functionality and capabilities as well as potential fixes and security updates. Quality updates are more frequent and mainly include small fixes and security updates.
Windows is designed to deliver both kinds of updates to devices through Windows Update. To find which version of Windows you're running, see Which version of Windows operating system am I running? Reserved storage will be turned on for new devices with Windows 11 preinstalled, or devices on which a clean install of Windows 11 was performed. In Windows 10, you decide when and how to get the latest updates to keep your device running smoothly and securely. If other questions come up when you update Windows 10, here are some other areas that might interest you:.
Get started with Windows When you only want info about updating Windows 10, you'll find answers to many of your questions here:. When the Windows 10 May Update is ready for your device, it will be available to download and install from the Windows Update page in Settings.
Choose a time that works best for you to download the update. After that, your device will be running Windows 10, version 21H1. To get help updating to the latest version of Windows 10, go to the Microsoft software download page and download the Update Assistant. Under Get up and running , select Windows Update. Then choose one of the following options:. Select Advanced options. Then, in the Pause updates section, select the drop-down menu and specify a date for updates to resume.
Reserved storage is not automatically turned on by Windows in any update scenarios. It is only turned on for new devices with the Windows 10 May Update version or later preinstalled, or devices on which a clean install was performed. The best way to keep Windows 8.
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