Note
- Windows Secure Boot certificate expiration
- Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past months. Devices that haven’t received the newer certificates will continue to start and operate normally, and standard Windows updates will continue to install. We will continue to install the newer certificates via Windows updates in the coming months.
- You can check your PC status on the Windows Security app. If you are an IT administrator, follow the guidance on the Secure Boot Playbook for Windows clients and Windows Server.
Note
- Windows Server 2016 and Windows 10 2016 LTSB end of support
- Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes on the following end dates:
- ♦ Windows 10 Enterprise LTSB 2016: October 13, 2026
- ♦ Windows 10 IoT Enterprise 2016 LTSB: October 13, 2026
- ♦ Windows Server 2016: January 12, 2027
- For more information, see Plan for Windows Server 2016 and Windows 10 2016 LTSB end of support.
Summary
This update makes improvements to Windows setup binaries or any files that setup uses for feature updates.
How to get this update
Install this update
To install this update, use one of the following release channels.
| Available | Next step |
|---|---|
|
This update is available through Windows Update. It will be downloaded and installed automatically. |
| Prerequisites | There are no prerequisites to apply this update. |
|---|---|
| Restart information | You do not have to restart your computer after you apply this update. |
| Update replacement information | This update replaces the previously released update KB5062786. |
File information
The English (United States) version of this software update installs files that have the following attributes. This update might contain files for additional languages.
For all supported x86-based versions
| File name | File version | Date | Time | File size |
|---|---|---|---|---|
| appraiser.sdb | Not versioned | 14-Oct-25 | 13:55 | 6,876,466 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 44,032 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 50,688 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 48,128 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 47,104 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 52,224 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 54,272 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 45,056 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 50,176 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 47,616 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 53,760 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 53,248 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 40,448 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 49,152 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 51,200 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 33,792 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 32,256 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 46,592 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 48,640 |
| MediaSetupUIMgr.dll | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 13,726,656 |
| ReAgent.dll | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 972,224 |
| MupMigPlugin.dll | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 82,944 |
| mup-replacement.man | Not versioned | 14-Oct-25 | 13:55 | 1,657 |
| SetupPlatform.dll | 1.42.14393.8590 | 14-Oct-25 | 13:55 | 5,774,272 |
| SetupPlatform.exe | 1.42.14393.8590 | 14-Oct-25 | 13:55 | 155,040 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 49,664 |
| UpdateSetupUIMgr.dll | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 1,616,792 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 28,160 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 13:55 | 28,672 |
For all supported x64-based versions
| File name | File version | Date | Time | File size |
|---|---|---|---|---|
| appraiser.sdb | Not versioned | 14-Oct-25 | 14:00 | 7,055,322 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 44,032 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 50,688 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 48,128 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 47,104 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 52,224 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 54,272 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 45,056 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 50,176 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 47,616 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 53,760 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 53,248 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 40,448 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 49,152 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 51,200 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 33,792 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 32,256 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 46,592 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 48,640 |
| MediaSetupUIMgr.dll | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 13,854,664 |
| ReAgent.dll | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 1,123,792 |
| MupMigPlugin.dll | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 109,056 |
| mup-replacement.man | Not versioned | 14-Oct-25 | 14:00 | 1,657 |
| SetupPlatform.dll | 1.42.14393.8590 | 14-Oct-25 | 14:00 | 7,219,640 |
| SetupPlatform.exe | 1.42.14393.8590 | 14-Oct-25 | 14:00 | 166,808 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 49,664 |
| UpdateSetupUIMgr.dll | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 1,697,176 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 28,160 |
| mediasetupuimgr.dll.mui | 10.0.14393.8590 | 14-Oct-25 | 14:00 | 28,672 |
References
Update Windows installation media with Dynamic Update
Description of the standard terminology that is used to describe Microsoft software updates