Win 11 Version 24H2 Install Failed

Anonymous

I tried to install Win 11 Version 24H2 for the second time, and it failed for a second time. The first BSOD message gave the following info:

Your device ran into a problem and needs to restart.

Stop code: INACCESSIBLE BOOT DEVICE

After a couple of restarts, the update was backed out. I'm back on Windows 11 Pro Version 23H2.

I checked the update history and saw the Install error code - 0xc1900101.

Before I tried the 24H2 update, I did the following:

Unplug unnecessary USB devices

Drivers were updated

No issues in Device Manager

I have 30GB of free space on the drive

Any help would be appreciated,

sms1295

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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104 answers

Ramesh 181.2K Reputation points Volunteer Moderator

2025-05-10T13:17:08+00:00
Hi,
1. It seems the CompatTelRunner command didn't run correctly.
Please try this.

schtasks.exe /Run /TN "\Microsoft\Windows\Application Experience\Microsoft Compatibility Appraiser"

Wait for 2 to 3 minutes.

Then run the following command:

REG QUERY "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators" /s

Post the output here.
1. Uninstall Avast.
Avast Removal Tool | Download Avast Clear | Avast: https://www.avast.com/en-in/uninstall-utility#pc
1. Clean boot windows.
How to perform a clean boot in Windows - Microsoft Support:
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd
(Step 3 in the above link is very important. You need to first enable "Hide all Microsoft Services" before clicking "Disable all".)
1. Share your Farbar scan logs.
Download Farbar Recovery Scan Tool 64-bit (FRST64.exe)

https://www.bleepingcomputer.com/download/farbar-recovery-scan-tool/

(or)

https://downloads.malwarebytes.com/file/mbst-frst64

Note: If Microsoft Edge or Chrome mislabels the Farbar Scanner executable as PUA/malware, choose to keep it by tapping … in the bottom bar, choosing Keep, and then choosing Keep anyway in the dialog that appears.

See this screenshot: https://learn.microsoft.com/en-us/deployedge/media/microsoft-edge-security-download-interruptions/dowload-was-blocked.png. It's a safe tool used in most antimalware forums.

If the OS language is not English, rename FRST64.exe to FRST64English.exe.

Run the program. Don't check or uncheck any options. Click "Scan".

Add the two logs, FRST.txt and Addition.txt, to a Zip archive, share them on OneDrive or GoFile.io and post the link here.
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Anonymous

Ramash,

Since the 24H2 update is no longer showing, I only preformed the following:

Enable Memory Integrity. To enable memory integrity in Windows, go to Windows Security > Device security > Core isolation details > Memory integrity. If it shows any incompatible drivers, post the screenshot here. < Memory Integrity was enabled, but no incompatible drivers were showing>
Check for gated blocks. Open Command Prompt and run this command: The results are below:

CurrentTargetOs REG_SZ NI23H2

DataExpDate    REG\_SZ    01/01/1601 

DataExpDateEpoch    REG\_SZ    0 

DataRelDate    REG\_SZ    05/01/2025 

DataRelDateEpoch    REG\_SZ    1746057600 

OemPref    REG\_SZ    0 

SdbVer    REG\_SZ    2733 

Version    REG\_SZ    12 

WIP    REG\_SZ    0 

AppraiserVersion    REG\_SZ    10022621 

Bat    REG\_SZ    0 

Bios    REG\_SZ    2024 

BootSect    REG\_SZ    512 

ComfUp    REG\_SZ    0 

Comm    REG\_SZ    Pro 

Fam    REG\_SZ    0 

Fing    REG\_SZ    0 

Free    REG\_SZ    16to32 

GenTelRunTimestamp    REG\_SZ    133912212009107392 

Genuine    REG\_SZ    1 

InboxDataVersion    REG\_SZ    2650 

Office    REG\_SZ    1 

Paper    REG\_SZ    0 

Perf    REG\_SZ    High 

Touch    REG\_SZ    0 

DataVer    REG\_SZ    2710 

DataVerRecommended    REG\_SZ    TRUE 

FailedPrereqs    REG\_MULTI\_SZ    None 

TimestampEpochString    REG\_SZ    1746747612 

Timestamp    REG\_QWORD    0x1dbc0728ac8a80e

If you see anything let me know,

sms1295

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Anonymous

2025-05-10T05:27:41+00:00
1. Run the Avast uninstall tool:
Avast Removal Tool | Download Avast Clear | Avast
1. Make sure that defender is on
2. Please run the V2 log collector and post a share link into this thread using drop box, or google drive
BSOD - Posting Instructions - Windows 10 Forums

BSOD - Posting Instructions | Windows 11 Forum (elevenforum.com)

https://www.tenforums.com/tutorials/3813-language-add-remove-change-windows-10-a.html

https://www.tenforums.com/tutorials/136792-change-display-language-windows-10-a.html#option1
1. Run: upgrade_failure_info > 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

Batch files for use in BSOD debugging - Windows 10 Help Forums
1. 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 - Page 2 - Windows 10 Forums

Batch files for use in BSOD debugging - Windows 10 Forums
1. Open administrative command prompt and copy and paste:
fltmc

schtasks.exe /Run /TN "\Microsoft\Windows\Application Experience\Microsoft Compatibility Appraiser"

reg query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators" /s

Post share links.

For share links please use drop box or google drive.

Make sure that links are available without sign in.

https://support.google.com/drive/answer/2424384?hl=en&co=GENIE.Platform%3DDesktop
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Lester Bernard Reyes 84,815 Reputation points Independent Advisor

2025-05-10T04:57:57+00:00

Hi, thank you for that information. After checking and analyzing the event files you have, there are general errors in the event files. Moreover, since the main issue is the Windows update, I suggest doing an in-place upgrade, wherein it will upgrade the device to the latest version and repair all issues without deleting any files.

Kindly follow the steps from this link:

https://answers.microsoft.com/en-us/windows/for...
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Ramesh 181.2K Reputation points Volunteer Moderator

2025-05-09T15:23:42+00:00
Please do the following:
- Enable Memory Integrity. To enable memory integrity in Windows, go to Windows Security > Device security > Core isolation details > Memory integrity. If it shows any incompatible drivers, post the screenshot here.
- To avoid third-party software interference, perform a clean boot on the system before running the setup. A clean boot is the process of starting Windows without loading any third-party applications or services. For more information, please refer to the Microsoft article.
How to perform a clean boot in Windows - Microsoft Support:
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd
(Step 3 in the above link is very important. You need to first enable "Hide all Microsoft Services" before clicking "Disable all".)
- Uninstall 3rd party antivirus if installed; you can reinstall it after the upgrade. After uninstalling it, restart Windows.
- Check for gated blocks. Open Command Prompt and run this command: CompatTelRunner.exe -m:appraiser.dll -f:DoScheduledTelemetryRun
It should complete within two minutes. After it completes, run the following command:
```
REG QUERY "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\TargetVersionUpgradeExperienceIndicators" /s
```
Post the output here.
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