Windows 11 Pro: Windows Update Fails at 98% and Repair Install Fails at 88%

lafargeotte · May 13, 2026

Hi everyone,

I am looking for some advice regarding a persistent update failure on my system.

Environment

OS: Windows 11 Pro
Memory: 32GB RAM
Storage: Multiple hard disks, all with plenty of free space

Problem
I attempted to run Windows Update yesterday (May 12th). The process proceeded normally until the post-reboot phase, where it became stuck at 98%. I left the system for over an hour before Windows determined it could not proceed and rolled back the changes. I tried again this morning with the exact same result.

What I tried
I attempted a Repair Install using Windows Update. After a couple of reboots, this process also hung, specifically at 88%. I ultimately had to boot into my rescue media and restore the system from a disk image I had fortunately created just before starting the process.

Question
Where would I find the specific Windows Update error messages or log files related to the hang at 98%?

Any help would be gratefully appreciated.

OAT · May 13, 2026

Question
Where would I find the specific Windows Update error messages or log files related to the hang at 98%?

Answer
Nowhere since you did an image restore.

lafargeotte · May 13, 2026

OAT said:
Question
Where would I find the specific Windows Update error messages or log files related to the hang at 98%?

Answer
Nowhere since you did an image restore.

Sorry, I did not make myself clear. The second Windows Update try was the most recent one with a rollback, so they will be available, I suppose.

OAT · May 13, 2026

lafargeotte said:
Sorry, I did not make myself clear. The second Windows Update try was the most recent one with a rollback, so they will be available, I suppose.

Please specify your current build along with the update(s) you were attempting to run.
How the update was initiated originally because you give us nothing here.
I think @zbook might be more capable than I to help since your system is not behaving as expected.

kelper · May 13, 2026

Try the Windows Update Troubleshooter.

Open Settings
Go to System
Select Troubleshoot
Click Other troubleshooters
Find Windows Update
Click Run

Also, open an Admin Command Propmt and run;

SFC /SCANNOW

then DISM /Online /Cleanup-Image /ScanHealth

If it finds problems, run DISM /Online /Cleanup-Image /RestoreHealth

zbook · May 13, 2026

1) Please run the V2 log collector > post a share link

BSOD - Posting Instructions

BSOD - Posting Instructions This will show you how to help provide needed information about your system and dump files. It will not contain any personal or sensitive information about you or your data. To get better help with your Windows BSOD issue, please read these instructions and follow...

www.elevenforum.com

2) Run upgrade_failure_info.bat > post a share link

https://www.tenforums.com/attachments/bsod-crashes-debugging/353454d1638278360-batch-files-use-bsod-debugging-upgrade_failure_info.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

3) Run Tuneup plus > post a share link

https://www.tenforums.com/attachmen...-files-use-bsod-debugging-tuneup_plus_log.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

4) Open administrative command prompt and copy and paste:

fltmc

dism /online /get-drivers /format:table >c:\drivers.txt

Post share links. (the second command creates a desktop file)

lafargeotte · May 13, 2026

zbook said:
1) Please run the V2 log collector > post a share link

BSOD - Posting Instructions

BSOD - Posting Instructions This will show you how to help provide needed information about your system and dump files. It will not contain any personal or sensitive information about you or your data. To get better help with your Windows BSOD issue, please read these instructions and follow...

www.elevenforum.com

2) Run upgrade_failure_info.bat > post a share link

https://www.tenforums.com/attachments/bsod-crashes-debugging/353454d1638278360-batch-files-use-bsod-debugging-upgrade_failure_info.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

3) Run Tuneup plus > post a share link

https://www.tenforums.com/attachmen...-files-use-bsod-debugging-tuneup_plus_log.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

4) Open administrative command prompt and copy and paste:

fltmc

dism /online /get-drivers /format:table >c:\drivers.txt

Post share links. (the second command creates a desktop file)

Thanks for your help. The last one has been running for almost 3 hours, so I will add that when it finishes. How long might the Tuneup plus take please?

UPDATE: I left the PC for 30 minutes or so and the Tuneup plus had disappeared!!!! I will have to run it again in the morning.
EDIT: Found this in temp folder, is this it?
Microsoft OneDrive
I hope that I have done it correctly, and attached and linked the correct files.
DESKTOP-(2026-05-13_16-34-00).zip

zbook · May 13, 2026

The logs reported a very large number of BSODs (March, April and May).

During the troubleshooting please move the page file from F: to C: then reboot.

Manage Virtual Memory Paging File in Windows 11

This tutorial will show you how to manage the virtual memory paging file for each drive on your Windows 10 and Windows 11 PC. A paging file (aka: "page file" and "virtual memory") enables the system to remove infrequently accessed modified data from physical memory to let the system use...

www.elevenforum.com

(Run Tuneup plus after the page file is on C:) > post a share link

The Tuneup plus script is a bat file.

Most computer run times are 15 minutes or less.

Some take 50 minutes to run sfc /scannow and restorehealth.

The script was designed to run in the background.

As it runs it typically displays its progress.

At completion there are popup instructions.

It's best to run overnight.

Run administrative PS: > post share links (comment if the commands fail to run)

wevtutil epl Application "$env:USERPROFILE\Desktop\application.evtx" /ow:true

wevtutil epl System "$env:USERPROFILE\Desktop\system.evtx" /ow:true

or

Run administrative command prompt: > post share links

wevtutil epl SYSTEM "%userprofile%\Desktop\System.evt"

wevtutil epl APPLICATION "%userprofile%\Desktop\Application.evt"

Run:

reagentc /enable
reagentc /info

Post a share link.

EDIT: Found this in temp folder, is this it?
Microsoft OneDrive
This was a cab file.
It may have been related to a driver?
(it is not related to post #6 steps)

Code:

Event[28]
  Log Name: System
  Source: Microsoft-Windows-Kernel-Power
  Date: 2026-05-13T09:34:07.0850000Z
  Event ID: 41
  Task: N/A
  Level: Critical
  Opcode: Info
  Keyword: N/A
  User: S-1-5-18
  User Name: NT AUTHORITY\SYSTEM
  Computer: DESKTOP
  Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

SIW2 · May 13, 2026

$WINDOWS.~BT\Sources\Rollback

if you have that take a look

or

%windir%\Logs\WindowsUpdate

not as easy as it used to be

Windows Update no longer directly produces a WindowsUpdate.log file.Instead, it produces .etl files that aren't immediately readable as written.

Get-WindowsUpdateLog (WindowsUpdate)

Use this article to help manage Windows and Windows Server technologies with Windows PowerShell.

learn.microsoft.com

this might be of some use

Windows Updates History Viewer

Displays the history of Windows updates for your local system, remote system, or external drive

www.nirsoft.net

lafargeotte · May 14, 2026

zbook said:
The logs reported a very large number of BSODs (March, April and May).

During the troubleshooting please move the page file from F: to C: then reboot.

Manage Virtual Memory Paging File in Windows 11

This tutorial will show you how to manage the virtual memory paging file for each drive on your Windows 10 and Windows 11 PC. A paging file (aka: "page file" and "virtual memory") enables the system to remove infrequently accessed modified data from physical memory to let the system use...

www.elevenforum.com

(Run Tuneup plus after the page file is on C:) > post a share link

The Tuneup plus script is a bat file.

Most computer run times are 15 minutes or less.

Some take 50 minutes to run sfc /scannow and restorehealth.

The script was designed to run in the background.

As it runs it typically displays its progress.

At completion there are popup instructions.

It's best to run overnight.

Run administrative PS: > post share links (comment if the commands fail to run)

wevtutil epl Application "$env:USERPROFILE\Desktop\application.evtx" /ow:true

wevtutil epl System "$env:USERPROFILE\Desktop\system.evtx" /ow:true

or

Run administrative command prompt: > post share links

wevtutil epl SYSTEM "%userprofile%\Desktop\System.evt"

wevtutil epl APPLICATION "%userprofile%\Desktop\Application.evt"

Run:

reagentc /enable
reagentc /info

Post a share link.

EDIT: Found this in temp folder, is this it?
Microsoft OneDrive
This was a cab file.
It may have been related to a driver?
(it is not related to post #6 steps)

Code:

Event[28] Log Name: System Source: Microsoft-Windows-Kernel-Power Date: 2026-05-13T09:34:07.0850000Z Event ID: 41 Task: N/A Level: Critical Opcode: Info Keyword: N/A User: S-1-5-18 User Name: NT AUTHORITY\SYSTEM Computer: DESKTOP Description: The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

Hi,

Thanks for everything, Tuneup log attached and here is the readout from PS:

PS C:\WINDOWS\system32> wevtutil epl Application "$env:USERPROFILE\Desktop\application.evtx" /ow:true
PS C:\WINDOWS\system32> wevtutil epl System "$env:USERPROFILE\Desktop\system.evtx" /ow:true
PS C:\WINDOWS\system32> reagentc /enable

REAGENTC.EXE: The Windows RE image was not found.

PS C:\WINDOWS\system32> reagentc /info
Windows Recovery Environment (Windows RE) and system reset configuration
Information:

Windows RE status: Disabled
Windows RE location:
Boot Configuration Data (BCD) identifier: f9c9990e-d2b2-11ef-be32-ddeec9ab32ac
Recovery image location:
Recovery image index: 0
Custom image location:
Custom image index: 0
Windows RE Version: 0.0.0.0

REAGENTC.EXE: Operation Successful.

zbook · May 14, 2026

1) Please monitor instability / stability using reliability history:

View Reliability History in Windows 11

This tutorial will show you how to view reliability history for your Windows 11 device. The Reliability Monitor provides a system stability overview and details about events that impact reliability. It calculates the Stability Index shown in the System Stability Chart. Reliability Monitor...

www.elevenforum.com

For any BSOD please post a new V2 share link into the newest post.

2) Run diskparinfo.bat > post a share link

https://www.tenforums.com/attachments/bsod-crashes-debugging/355861d1640707960-batch-files-use-bsod-debugging-diskparinfo.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

3) Please open Disk Management >adjust the column widths and row heights to make all the entries visible.
Post a share link.

How to Post a Screenshot of Disk Management

How to Post a Screenshot of Disk Management at Ten Forums

www.tenforums.com

4) Open event viewer:
a) System
b) Application

Post share links.

How to Export Windows Event Logs | Dell US

Indicate if these commands function:

Run administrative command prompt: > post share links

wevtutil epl Application "%userprofile%\Desktop\application.evtx"

wevtutil epl System "%userprofile%\Desktop\system.evtx"

lafargeotte · May 14, 2026

zbook said:
1) Please monitor instability / stability using reliability history:

View Reliability History in Windows 11

This tutorial will show you how to view reliability history for your Windows 11 device. The Reliability Monitor provides a system stability overview and details about events that impact reliability. It calculates the Stability Index shown in the System Stability Chart. Reliability Monitor...

www.elevenforum.com

For any BSOD please post a new V2 share link into the newest post.

2) Run diskparinfo.bat > post a share link

https://www.tenforums.com/attachments/bsod-crashes-debugging/355861d1640707960-batch-files-use-bsod-debugging-diskparinfo.bat

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

Batch files for use in BSOD debugging - Windows 10 Help Forums

Information This thread is for use by the BSOD team to store batch files that can be used to collect additional data, fix settings or anything else that is useful in debugging BSOD problems in Windows 10. The way I see it working is the first

www.tenforums.com

3) Please open Disk Management >adjust the column widths and row heights to make all the entries visible.
Post a share link.

How to Post a Screenshot of Disk Management

How to Post a Screenshot of Disk Management at Ten Forums

www.tenforums.com

4) Open event viewer:
a) System
b) Application

Post share links.

How to Export Windows Event Logs | Dell US

Indicate if these commands function:

Run administrative command prompt: > post share links

wevtutil epl Application "%userprofile%\Desktop\application.evtx"

wevtutil epl System "%userprofile%\Desktop\system.evtx"

Hopefully these are what you need.

zbook · May 14, 2026

1) When available please update the progress with event viewer and disk management share links.

2) Download to a new desktop folder:

Download Official Windows 11 ISO file from Microsoft

This tutorial will show you how to download an official Windows Server or Windows 11 64-bit or ARM64 ISO file from Microsoft. Microsoft provides ISO files for Windows Server and Windows 11 to download. You can use these ISO files to clean install or in-place upgrade Windows 11. The Flight Hub...

www.elevenforum.com

Download Windows 11

Code:

Windows Recovery Environment (Windows RE) and system reset configuration
Information:

    Windows RE status:         Enabled
    Windows RE location:       \\?\GLOBALROOT\device\harddisk0\partition2\Recovery\WindowsRE

lafargeotte · May 14, 2026

zbook said:
1) When available please update the progress with event viewer and disk management share links.

2) Download to a new desktop folder:

Download Official Windows 11 ISO file from Microsoft

This tutorial will show you how to download an official Windows Server or Windows 11 64-bit or ARM64 ISO file from Microsoft. Microsoft provides ISO files for Windows Server and Windows 11 to download. You can use these ISO files to clean install or in-place upgrade Windows 11. The Flight Hub...

www.elevenforum.com

Download Windows 11

Code:

Windows Recovery Environment (Windows RE) and system reset configuration Information: Windows RE status: Enabled Windows RE location: \\?\GLOBALROOT\device\harddisk0\partition2\Recovery\WindowsRE

I am downloading the ISO.

Can you please clarify, what you want me to do with Event Viewer and Disk Management, and also what to do with:

Code:

Windows Recovery Environment (Windows RE) and system reset configuration
Information:

    Windows RE status:         Enabled
    Windows RE location:       \\?\GLOBALROOT\device\harddisk0\partition2\Recovery\WindowsRE

Thanks again.

zbook · May 14, 2026

Please post share links for event viewer system and application and disk management.

Post #10 displayed:
Windows RE status: Disabled

Disk partition info reported:
Windows RE status: Enabled

So Windows RE moved from Disabled to Enabled.

lafargeotte · May 14, 2026

zbook said:
Please post share links for event viewer system and application and disk management.

Post #10 displayed:
Windows RE status: Disabled

Disk partition info reported:
Windows RE status: Enabled

So Windows RE moved from Disabled to Enabled.

So Windows RE moved from Disabled to Enabled, it would appear so, but there is no RE Partition.
C:\Windows\System32>reagentc /info
Windows Recovery Environment (Windows RE) and system reset configuration
Information:

Windows RE status: Enabled
Windows RE location: \\?\GLOBALROOT\device\harddisk0\partition2\Recovery\WindowsRE
Boot Configuration Data (BCD) identifier: f9c9990e-d2b2-11ef-be32-ddeec9ab32ac
Recovery image location:
Recovery image index: 0
Custom image location:
Custom image index: 0
Windows RE Version: 10.0.26100.6901

REAGENTC.EXE: Operation Successful.

Attached files as requested.

zbook · May 14, 2026

1) Please read this link on Windows Driver Verifier (WDV):

Enable and Disable Driver Verifier in Windows 10

Enable and Disable Driver Verifier in Windows 10

How to Enable and Disable Driver Verifier in Windows 10

www.tenforums.com

2) Create a new restore point

Create System Restore Point in Windows 11

This tutorial will show you how to manually create a restore point in Windows 11. Turning on system protection for a drive allows System Restore to include the drive when restore points are created so you can undo undesired system changes by reverting to a previous point in time. System...

www.elevenforum.com

3) Learn the methods to recover from BSOD caused by WDV by booting into safe mode and running one or more of these commands:

verifier /reset

verifier /bootmode resetonbootfail

(option nine and seven)

Boot to Advanced Startup (WinRE) in Windows 11

This tutorial will show you how to boot to the advanced startup (WinRE) in Windows 11. The Windows Recovery Environment (WinRE) is a companion operating system installed alongside Windows 11, typically in a separate partition, that can help with troubleshooting, recovery, or booting from...

www.elevenforum.com

4) Plan to run the tool with various customized test settings.

a) Test all non-Microsoft drivers

b) Test no Microsoft drivers

c) For the first run of WDV select the 3 customized tests displayed in the TF tutorial

5) Whenever the WDV tool is started if there is no immediate BSOD then open administrative command prompt and copy and paste:

verifier /querysettings

Post a share link.

Customized tests will then be posted for the next run of WDV.

WDV can run continuously during the testing.

For any BSOD post a new V2 share link into the newest post.

lafargeotte · May 14, 2026

I don't have a RE partition, how do I set it up please?

zbook · May 14, 2026

1) Please see the disk management image and results disk partition info.

Volume 1 NTFS Partition 726 MB Healthy Hidden
Partition 2 Recovery 726 MB 222 GB

2) Please create a bootable Windows 11 MCT/iso:

Create Windows 11 Bootable USB Installation Media

This tutorial will show you how to create a bootable USB flash drive used to install Windows 11 with UEFI support. You can use a Windows 11 installation USB flash drive to clean install, upgrade, reset, or repair Windows 11. The installation USB can also be used as a recovery drive to boot to...

www.elevenforum.com

Download Official Windows 11 ISO file from Microsoft

This tutorial will show you how to download an official Windows Server or Windows 11 64-bit or ARM64 ISO file from Microsoft. Microsoft provides ISO files for Windows Server and Windows 11 to download. You can use these ISO files to clean install or in-place upgrade Windows 11. The Flight Hub...

www.elevenforum.com

Download Windows 11

3) Enable regback:

Enable Automatic Backup of System Registry when Restart in Windows 11

This tutorial will show you how to enable automatic backup of the system registry to the RegBack folder when the computer restarts in Windows 10 and Windows 11. Starting with Windows 10, version 1803, Windows no longer automatically backs up the system registry to the RegBack folder when the...

www.elevenforum.com

Code:

Disk 0 is now the selected disk.

KINGSTON SHSS37A240G
Disk ID: {2646A4D0-4605-11E8-8811-88D7F67A53A0}
Type   : SATA
Status : Online
Path   : 0
Target : 0
LUN ID : 0
Location Path : PCIROOT(0)#PCI(0103)#PCI(0001)#ATA(C00T00L00)
Current Read-only State : No
Read-only  : No
Boot Disk  : Yes
Pagefile Disk  : Yes
Hibernation File Disk  : No
Crashdump Disk  : Yes
Clustered Disk  : No

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
  Volume 0     C   Main Disk    NTFS   Partition    222 GB  Healthy    Boot   
  Volume 1                      NTFS   Partition    726 MB  Healthy    Hidden 
  Volume 2                      FAT32  Partition    100 MB  Healthy    System 

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    Primary            222 GB  1024 KB
  Partition 2    Recovery           726 MB   222 GB
  Partition 3    System             100 MB   223 GB

Partition 1 is now the selected partition.

Partition 1
Type    : ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
Hidden  : No
Required: No
Attrib  : 0000000000000000
Offset in Bytes: 1048576

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
* Volume 0     C   Main Disk    NTFS   Partition    222 GB  Healthy    Boot   

Partition 2 is now the selected partition.

Partition 2
Type    : de94bba4-06d1-4d40-a16a-bfd50179d6ac
Hidden  : Yes
Required: Yes
Attrib  : 0X8000000000000001
Offset in Bytes: 239188574208

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
* Volume 1                      NTFS   Partition    726 MB  Healthy    Hidden 

Partition 3 is now the selected partition.

Partition 3
Type    : c12a7328-f81f-11d2-ba4b-00a0c93ec93b
Hidden  : Yes
Required: No
Attrib  : 0X8000000000000000
Offset in Bytes: 239950888960

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
* Volume 2                      FAT32  Partition    100 MB  Healthy    System

lafargeotte · May 14, 2026

Hi,
I'm sorry, I can get by with some IT stuff, but now you are going over my head, sorry.
I should add that I downloaded the latest ISO of Windows 11, I cannot seem to find the winre.wim. I extracted the iso, mounted it, and it does not seem to be there.

Windows 11 Pro: Windows Update Fails at 98% and Repair Install Fails at 88%

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