What's new in KB5078883 (Windows 11 build 22631.6783)
- Windows 11, version 23H2
- OS Build 22631.6783
Maya Reyes3 min readQuick answer
KB5078883 is a cumulative quality update released on March 10, 2026, for devices running Windows 11, version 23H2. Installing this update advances your operating system build to OS Build 22631.6783. It delivers monthly servicing updates, maintenance patches, and system improvements directly through Windows Update.
Microsoft released update KB5078883 on March 10, 2026, for systems running Windows 11, version 23H2. This release upgrades devices to OS Build 22631.6783 as part of the standard monthly update cycle. Cumulative updates of this type are designed to keep Windows 11 systems maintained, stable, and up to date with the latest platform fixes.
This servicing update applies specifically to PCs running Windows 11 version 23H2. Devices configured to receive automatic updates will download KB5078883 automatically through Windows Update, though users can also check for and install it manually.
Summary of release details for KB5078883
- Update Identifier: KB5078883
- Resulting Build: OS Build 22631.6783
- Release Date: March 10, 2026
- Applicable Version: Windows 11, version 23H2
- Delivery Method: Windows Update / Automatic Updates
Method 1: How to install KB5078883 through Windows Update
Use this method if you want to download and install KB5078883 immediately on your PC. Windows Update provides the standard and safest installation path for monthly updates.
- Select the Start menu button on your taskbar or press the Windows key on your keyboard.
- Click the gear icon to open Settings.
- In the left navigation menu, click Windows Update.
- Click the blue Check for updates button near the top of the window.
- Wait while Windows searches for available updates. When KB5078883 appears in the list, click Download and install if the download does not start automatically.
- Allow the installation progress bar to complete. When prompted, click Restart now to apply the update.
After your computer restarts, the update process will complete during the boot sequence. Your system will then be updated to OS Build 22631.6783.
Method 2: How to check your build using the Run dialog
Use this method after installing the update to verify that your system is actively running OS Build 22631.6783. This quick check confirms whether KB5078883 installed successfully.
- Press the Windows key + R keyboard shortcut to open the Run dialog box.
- In the open text field, type
winverand press Enter or click OK. - A window titled About Windows will open on your screen.
- Look at the second line of text under the Windows banner, which displays the OS version and build number.
- Confirm that the window shows Version 23H2 and OS Build 22631.6783.
- Click OK to close the window.
If the window displays OS Build 22631.6783, your system has successfully updated to the March 10, 2026 release.
Method 3: How to verify KB5078883 in Windows Settings
Use this method if you prefer checking system specifications and update status inside the modern Settings interface without using command shortcuts.
- Click the Start button on the taskbar and select Settings.
- In the left panel, select System if it is not already selected.
- Scroll down the main pane and click About.
- Expand the Windows specifications section by clicking on it.
- Look for the row labeled OS build and check the numbers listed next to it.
- Verify that 22631.6783 is displayed next to OS build.
You can also click Windows Update in the left panel and open Update history to verify that KB5078883 is listed under installed quality updates.
If nothing worked
If KB5078883 fails to download or fails to complete the installation process, you can troubleshoot the update mechanism directly within Windows 11.
First, open Settings, navigate to System, select Troubleshoot, and click Other troubleshooters. Locate Windows Update in the list and click Run. Follow any on-screen prompts to resolve common update service issues.
Second, restart your PC and return to Windows Update in Settings to check for updates again. Restarting helps reset temporary update background services that may have halted during download.
Sources
Frequently asked questions
What is KB5078883?
KB5078883 is a cumulative quality update released on March 10, 2026, for Windows 11, version 23H2.
What OS build does KB5078883 update Windows 11 to?
Installing KB5078883 updates your system to Windows 11 OS Build 22631.6783.
Which version of Windows 11 requires KB5078883?
KB5078883 applies specifically to systems running Windows 11, version 23H2.
Verified: pending — this guide is awaiting a hands-on check on a current build.
Covers Windows 11 update releases and the problems that follow them. Tracks Microsoft's release-health notes daily and flags known issues the same day they appear.
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