I am unable to install Windows 11 Insider Preview Feature Update (26220.9492)

Question

I am unable to install Windows 11 Insider Preview Feature Update (26220.9492)

Howard Schlenker 0

I have an hp laptop 17t-cn000, windows 11 home 26H2, which I've unsuccessfully tried to install 26220.9492 update multiple times over the past 3 days. It continuously fails at FIRST_BOOT, then rolls back to previous build. Most recent setuperr.log shows:

2026-09-22 22:05:54, Error SP Failed to merge telemetry file: . hr = 0X80070057

2026-09-22 22:07:32, Error [0x064183] IBSLIB OSRollbackService::CCheckpoint::MoveOrCopyDirectory: ObliterateOrMoveDirectoryTree(D:$WINDOWS.~BT\Sources\Panther) failed.[gle=0x00000005]

2026-09-22 22:08:35, Error SP Failed to merge telemetry file: D:$WINDOWS.~BT\Sources\Panther\RbTel.etl. hr = 0X80070057

2026-09-22 22:10:39, Error MOUPG CSetupHost::ExecuteDiagnosticAnalysis(1911): Result = 0x800705B4

2026-09-22 22:10:40, Error [0x0803b6] MIG Can't retrieve group information for user NT SERVICE\IntelTelemetryAgent. NetUserGetLocalGroups failed 0x000008AD

2026-09-22 22:10:40, Error [0x0803b6] MIG Can't retrieve group information for user IIS APPPOOL\Classic .NET AppPool. NetUserGetLocalGroups failed 0x000008AD

2026-09-22 22:10:40, Error [0x0803b6] MIG Can't retrieve group information for user IIS APPPOOL.NET v4.5. NetUserGetLocalGroups failed 0x000008AD

2026-09-22 22:10:40, Error [0x0803b6] MIG Can't retrieve group information for user IIS APPPOOL\DefaultAppPool. NetUserGetLocalGroups failed 0x000008AD

2026-09-22 22:10:40, Error [0x0803b6] MIG Can't retrieve group information for user IIS APPPOOL.NET v2.0. NetUserGetLocalGroups failed 0x000008AD

2026-09-22 22:10:40, Error [0x0803b6] MIG Can't retrieve group information for user IIS APPPOOL.NET v4.5 Classic. NetUserGetLocalGroups failed 0x000008AD

2026-09-22 22:10:40, Error [0x0803b6] MIG Can't retrieve group information for user IIS APPPOOL.NET v2.0 Classic. NetUserGetLocalGroups failed 0x000008AD

Any help would be greatly appreciated. Thanks.

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4 answers

Your answer

Answer 1

Howard Schlenker 0

Successful update after many hours spent with ChatGPT and fixes to laptop.

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Answer 2

Howard Schlenker 0

After much time spent with ChatGPT over several days, I was able to correct all the problems with my laptop and installed the update and subsequent updates successfully. Thanks all for the time and suggestions to assist me with this. Regards, Howard

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Answer 3

Sumit 44,616 Volunteer Moderator

Insider Builds can have problems like these.

Please supply the following Information.

Right-click the Start button and Choose the Run option

Type in msinfo32

Press enter.

Take a screenshot of the System Summary window and post it in the next reply.

Howard Schlenker 0 Reputation points

2026-09-28T10:54:11.3166667+00:00

After much troubleshooting I've discovered that I have a corrupted Component Store in the registry, missing amd64_microsoft-onecore-mcmsvc-misc. I understand that a Clean Install is recommended, but if there's any other way of repairing the Component Store and adding back any missing registry keys that would be greatly appreciated.
Neil D 34,445 Reputation points Volunteer Moderator

2026-09-28T14:25:24.2966667+00:00

You could try a recovery first if you don't fancy a clean install.

Settings > System > Recovery > Fix problems using windows update, select Reinstall now. This process reinstalls the current version and build.

Answer 4

For a rollback during setup, the supported first-pass fixes are the same driver and background-process checks used for Windows upgrade failures.

Back up important data first. Microsoft recommends a robust backup and recovery plan before upgrading.
Disconnect nonessential hardware: remove external storage, docks, and other peripherals. Leave only keyboard, mouse, and display connected.
Temporarily uninstall third-party antivirus or security software, then retry the update. These can interfere with setup and rollback.
Run Windows Update repeatedly until no important updates, hardware updates, or driver updates remain.
Update third-party drivers from the device or component manufacturer sites, especially chipset, storage, graphics, and firmware-related drivers.
Check Device Manager:
- Open devmgmt.msc
- Look for devices with a yellow exclamation mark
- For each affected device, use Update Driver Software or Uninstall
- Retry the update after all device errors are cleared
Review Event Viewer system logs for driver or hardware-related events around the failed install time and correct any issue found.
Update BIOS/firmware from HP if a newer version is available for the laptop model.
If background software is interfering, perform a clean boot and retry the update. This is specifically recommended when setup is terminated by another background process.
If Windows Update components may be stuck, reset the update cache from an elevated Command Prompt:

net stop bits
net stop wuauserv
ren %systemroot%\softwaredistribution softwaredistribution.bak
ren %systemroot%\system32\catroot2 catroot2.bak
net start bits
net start wuauserv

Then restart the PC and try the update again.

Check the system drive for file-system errors from an elevated Command Prompt:

chkdsk /f C:

A restart will be required.

If the failure persists, check whether the device has enough free space. For 0xC1900101-class upgrade failures, Microsoft lists at least 16 GB free for 32-bit OS or 20 GB for 64-bit OS.

Notes on risk:

Renaming SoftwareDistribution and catroot2 requires administrator rights and is an advanced troubleshooting step.
chkdsk /f schedules disk repair and requires a restart.
BIOS updates should be done carefully because interruption can cause system problems.

The log lines shown point most strongly to setup/migration interference from drivers, services, or background software, so the highest-value path is: disconnect peripherals, remove third-party security software, update drivers/BIOS, clear Device Manager errors, then retry in a clean boot state.

References: