Summary
This update makes improvements to the "safe operating system" (Safe OS) that is used to update the Windows recovery environment (WinRE) for Windows 11.
How to get this update
Install this update
| Release Channel | Available | Next Step |
|---|---|---|
| Microsoft Update Catalog | Yes | To get the standalone package for this update, go to the Microsoft Update Catalog website. |
| Windows Server Update Services (WSUS) | Yes | You can import this update into WSUS manually. For more information, see the Frequently Asked Questions topic on the Microsoft Update Catalog website for instructions. |
Prerequisites
There are no prerequisites to apply this update.
Restart information
You don't have to restart your device after you apply this update.
Update replacement information
This update does not replace any previously released update.
File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.
For all supported x64-based devices
| File name | File version | Date | Time | File size |
|---|---|---|---|---|
| tpm.inf | Not versioned | 18-Oct-2021 | 19:08 | 11,790 |
| tpm.sys | 10.0.22000.341 | 18-Oct-2021 | 21:03 | 344,376 |
| Facilitator.dll | 10.0.22000.132 | 5-Aug-2021 | 18:20 | 1,081,656 |
| winload.exe | 10.0.22000.132 | 5-Aug-2021 | 18:11 | 1,630,616 |
| winload.efi | 10.0.22000.132 | 5-Aug-2021 | 18:11 | 2,310,384 |
| winresume.exe | 10.0.22000.132 | 5-Aug-2021 | 18:18 | 1,242,192 |
| winresume.efi | 10.0.22000.132 | 5-Aug-2021 | 18:18 | 1,856,848 |
| ci.dll | 10.0.22000.132 | 5-Aug-2021 | 18:12 | 946,592 |
| driver.stl | Not versioned | 13-Jul-2021 | 16:58 | 4,953 |
| cmi2migxml.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 229,712 |
| csiagent.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 717,112 |
| diagER.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 78,136 |
| hwcompat.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 250,160 |
| hwcompat.txt | Not versioned | 18-Jun-2021 | 6:52 | 787,749 |
| hwexclude.txt | Not versioned | 18-Jun-2021 | 6:52 | 51 |
| icbexclusion.inf | Not versioned | 18-Jun-2021 | 4:55 | 7,222 |
| migapp.xml | Not versioned | 27-Mar-2021 | 17:47 | 654,548 |
| migcore.dll | 10.0.22000.51 | 18-Jun-2021 | 6:46 | 9,707,832 |
| mighost.exe | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 278,840 |
| migres.dll | 10.0.22000.51 | 18-Jun-2021 | 6:46 | 24,904 |
| migisol.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 147,768 |
| migstore.dll | 10.0.22000.51 | 18-Jun-2021 | 6:46 | 1,319,224 |
| migsys.dll | 10.0.22000.51 | 18-Jun-2021 | 6:46 | 454,984 |
| MXEAgent.dll | 10.0.22000.51 | 18-Jun-2021 | 6:48 | 373,064 |
| offline.xml | Not versioned | 18-Jun-2021 | 4:55 | 41,548 |
| oscomps.xml | Not versioned | 18-Jun-2021 | 4:55 | 447,950 |
| oscomps.woa.xml | Not versioned | 18-Jun-2021 | 4:55 | 249,101 |
| osfilter.inf | Not versioned | 18-Jun-2021 | 4:55 | 21,299 |
| pnppropmig.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 102,736 |
| reagent.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 598,352 |
| ReserveManager.dll | 10.0.22000.51 | 18-Jun-2021 | 0:35 | 315,728 |
| setupplatform.cfg | Not versioned | 8-Jun-2021 | 17:29 | 6,388 |
| setupplatform.dll | 1.66.22000.51 | 18-Jun-2021 | 6:46 | 9,589,040 |
| setupplatform.exe | 1.66.22000.51 | 18-Jun-2021 | 6:47 | 241,976 |
| SFCN.dat | Not versioned | 27-Mar-2021 | 17:46 | 1,824 |
| SFLCID.dat | Not versioned | 27-Mar-2021 | 17:46 | 1,644 |
| SFLISTW7.dat | Not versioned | 8-May-2021 | 17:27 | 1,703,368 |
| SFLISTW8.dat | Not versioned | 8-May-2021 | 17:27 | 2,608,858 |
| SFLISTWB.dat | Not versioned | 8-May-2021 | 17:27 | 3,172,904 |
| SFLISTWT.dat | Not versioned | 8-Jun-2021 | 17:30 | 4,935,438 |
| sflistw8.woa.dat | Not versioned | 8-May-2021 | 17:27 | 954,436 |
| SFLISTRS1.dat | Not versioned | 8-Jun-2021 | 17:30 | 5,593,264 |
| sflistwb.woa.dat | Not versioned | 8-May-2021 | 17:27 | 1,150,134 |
| sflistwt.woa.dat | Not versioned | 8-May-2021 | 17:27 | 2,636,850 |
| SFPAT.inf | Not versioned | 18-Jun-2021 | 4:55 | 11,602 |
| SFPATW7.inf | Not versioned | 18-Jun-2021 | 4:55 | 17,396 |
| SFPATW8.inf | Not versioned | 18-Jun-2021 | 4:55 | 79,818 |
| SFPATWB.inf | Not versioned | 18-Jun-2021 | 4:55 | 91,635 |
| SFPATWT.inf | Not versioned | 18-Jun-2021 | 4:55 | 165,729 |
| SFPATRS1.inf | Not versioned | 18-Jun-2021 | 4:55 | 169,870 |
| unbcl.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 1,204,528 |
| upgradeagent.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 3,285,304 |
| upgradeagent.xml | Not versioned | 18-Jun-2021 | 4:55 | 70,907 |
| upgrade_comp.xml | Not versioned | 18-Jun-2021 | 4:55 | 6,054 |
| upgrade_bulk.xml | Not versioned | 18-Jun-2021 | 4:55 | 209,520 |
| upgrade_data.xml | Not versioned | 18-Jun-2021 | 4:55 | 41,750 |
| upgrade_frmwrk.xml | Not versioned | 18-Jun-2021 | 4:55 | 18,785 |
| upgWow_bulk.xml | Not versioned | 18-Jun-2021 | 4:55 | 115,041 |
| uninstall.xml | Not versioned | 18-Jun-2021 | 4:55 | 4,407 |
| uninstall_data.xml | Not versioned | 18-Jun-2021 | 4:55 | 11,122 |
| wdsutil.dll | 10.0.22000.51 | 18-Jun-2021 | 6:47 | 356,664 |
| ClipSp.sys | 10.0.22000.132 | 5-Aug-2021 | 18:12 | 1,126,736 |
| ntdll.dll | 10.0.22000.132 | 5-Aug-2021 | 18:13 | 2,124,216 |
| ntoskrnl.exe | 10.0.22000.132 | 5-Aug-2021 | 18:13 | 11,747,656 |
| winpeshl.exe | 10.0.22000.51 | 18-Jun-2021 | 0:07 | 57,344 |
| wpeutil.dll | 10.0.22000.51 | 18-Jun-2021 | 0:06 | 163,840 |
| wpeutil.exe | 10.0.22000.51 | 18-Jun-2021 | 0:09 | 32,768 |
| wpeinit.exe | 10.0.22000.51 | 18-Jun-2021 | 0:09 | 57,344 |
| startnet.cmd | Not versioned | 27-Mar-2021 | 17:51 | 9 |
| ntdll.dll | 10.0.22000.132 | 5-Aug-2021 | 17:26 | 1,720,528 |
For all supported Arm64-based devices
| File name | File version | Date | Time | File size |
|---|---|---|---|---|
| ntdll.dll | 10.0.22000.132 | 5-Aug-2021 | 17:36 | 1,615,968 |
| ntdll.dll | 10.0.22000.132 | 5-Aug-2021 | 17:26 | 1,720,528 |
| tpm.inf | Not versioned | 18-Oct-2021 | 19:08 | 11,604 |
| tpm.sys | 10.0.22000.341 | 18-Oct-2021 | 21:55 | 311,112 |
| Facilitator.dll | 10.0.22000.132 | 5-Aug-2021 | 19:19 | 1,098,056 |
| winload.efi | 10.0.22000.132 | 5-Aug-2021 | 19:10 | 2,039,680 |
| winresume.efi | 10.0.22000.132 | 5-Aug-2021 | 19:18 | 1,560,320 |
| ci.dll | 10.0.22000.132 | 5-Aug-2021 | 19:11 | 811,552 |
| driver.stl | Not versioned | 13-Jul-2021 | 16:58 | 4,725 |
| cmi2migxml.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 219,960 |
| csiagent.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 706,872 |
| diagER.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 55,632 |
| hwcompat.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 237,392 |
| hwcompat.txt | Not versioned | 18-Jun-2021 | 10:03 | 206,560 |
| hwexclude.txt | Not versioned | 18-Jun-2021 | 10:03 | 51 |
| icbexclusion.inf | Not versioned | 18-Jun-2021 | 8:08 | 7,222 |
| migapp.xml | Not versioned | 22-Feb-2021 | 19:21 | 654,548 |
| migcore.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 9,968,464 |
| mighost.exe | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 264,504 |
| migres.dll | 10.0.22000.51 | 18-Jun-2021 | 9:58 | 16,176 |
| migisol.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 118,584 |
| migstore.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 1,338,160 |
| migsys.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 448,816 |
| MXEAgent.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 360,784 |
| offline.xml | Not versioned | 18-Jun-2021 | 8:07 | 41,548 |
| oscomps.xml | Not versioned | 18-Jun-2021 | 8:07 | 447,950 |
| oscomps.woa.xml | Not versioned | 18-Jun-2021 | 8:07 | 249,101 |
| osfilter.inf | Not versioned | 18-Jun-2021 | 8:08 | 21,299 |
| pnppropmig.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 89,400 |
| reagent.dll | 10.0.22000.51 | 18-Jun-2021 | 10:00 | 968,000 |
| ReserveManager.dll | 10.0.22000.51 | 18-Jun-2021 | 3:35 | 311,096 |
| setupplatform.cfg | Not versioned | 25-May-2021 | 18:30 | 6,388 |
| setupplatform.dll | 1.66.22000.51 | 18-Jun-2021 | 9:59 | 9,972,528 |
| setupplatform.exe | 1.66.22000.51 | 18-Jun-2021 | 9:59 | 234,296 |
| SFCN.dat | Not versioned | 22-Feb-2021 | 19:21 | 1,824 |
| SFLCID.dat | Not versioned | 22-Feb-2021 | 19:21 | 1,644 |
| SFLISTW7.dat | Not versioned | 8-May-2021 | 18:34 | 1,703,368 |
| SFLISTW8.dat | Not versioned | 8-May-2021 | 18:34 | 2,608,858 |
| SFLISTWB.dat | Not versioned | 8-May-2021 | 18:34 | 3,172,904 |
| SFLISTWT.dat | Not versioned | 8-May-2021 | 18:34 | 4,935,438 |
| sflistw8.woa.dat | Not versioned | 8-May-2021 | 18:34 | 954,436 |
| SFLISTRS1.dat | Not versioned | 25-May-2021 | 18:30 | 5,593,264 |
| sflistwb.woa.dat | Not versioned | 8-May-2021 | 18:34 | 1,150,134 |
| sflistwt.woa.dat | Not versioned | 8-May-2021 | 18:34 | 2,636,850 |
| SFPAT.inf | Not versioned | 18-Jun-2021 | 8:08 | 11,602 |
| SFPATW7.inf | Not versioned | 18-Jun-2021 | 8:08 | 17,396 |
| SFPATW8.inf | Not versioned | 18-Jun-2021 | 8:08 | 79,818 |
| SFPATWB.inf | Not versioned | 18-Jun-2021 | 8:08 | 91,635 |
| SFPATWT.inf | Not versioned | 18-Jun-2021 | 8:08 | 165,729 |
| SFPATRS1.inf | Not versioned | 18-Jun-2021 | 8:08 | 169,870 |
| unbcl.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 1,191,728 |
| upgradeagent.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 3,383,600 |
| upgradeagent.xml | Not versioned | 18-Jun-2021 | 8:07 | 70,907 |
| upgrade_comp.xml | Not versioned | 18-Jun-2021 | 8:07 | 6,054 |
| upgrade_bulk.xml | Not versioned | 18-Jun-2021 | 8:07 | 209,520 |
| upgrade_data.xml | Not versioned | 18-Jun-2021 | 8:07 | 41,750 |
| upgrade_frmwrk.xml | Not versioned | 18-Jun-2021 | 8:07 | 18,785 |
| upgWow_bulk.xml | Not versioned | 18-Jun-2021 | 8:07 | 115,041 |
| upgWowA32_bulk.xml | Not versioned | 18-Jun-2021 | 8:07 | 115,031 |
| uninstall.xml | Not versioned | 18-Jun-2021 | 8:07 | 4,407 |
| uninstall_data.xml | Not versioned | 18-Jun-2021 | 8:07 | 11,122 |
| wdsutil.dll | 10.0.22000.51 | 18-Jun-2021 | 9:59 | 349,496 |
| ClipSp.sys | 10.0.22000.132 | 5-Aug-2021 | 19:11 | 969,552 |
| ntdll.dll | 10.0.22000.132 | 5-Aug-2021 | 19:11 | 4,108,384 |
| ntoskrnl.exe | 10.0.22000.132 | 5-Aug-2021 | 19:11 | 11,003,720 |
| winpeshl.exe | 10.0.22000.51 | 18-Jun-2021 | 2:21 | 36,352 |
| wpeutil.dll | 10.0.22000.51 | 18-Jun-2021 | 2:20 | 143,360 |
| wpeutil.exe | 10.0.22000.51 | 18-Jun-2021 | 2:23 | 11,776 |
| wpeinit.exe | 10.0.22000.51 | 18-Jun-2021 | 2:22 | 36,864 |
| startnet.cmd | Not versioned | 22-Feb-2021 | 19:25 | 9 |
References
Learn about the terminology that Microsoft uses to describe software updates.