[Q&A] Fluentd installation rollback on Windows 10 LTSC 21H2

[Fab-D-42]

What is a problem?

Hello,

I am experiencing an issue while installing Fluentd on Windows 10 Enterprise LTSC 21H2 (Build 19044.6332).
During the installation process, the setup wizard runs normally at first, but near the end it displays the message:
"Rolling back action"
After that, the installer removes all previously installed components and Fluentd is not installed on the system.

System details:

OS: Windows 10 Enterprise LTSC 21H2
Build: 19044.6332
Local administrator account used for installation
No visible error message besides "Rolling back action"
fluent used: fluent-package-6.0.1-x64

Could you please advise:

Whether Fluentd officially supports Windows 10 LTSC?
If there are known issues related to LTSC builds?

If needed, I can provide log files or additional system information.

Thank you for your support.

Describe the configuration of Fluentd

No response

Describe the logs of Fluentd

no logs

Environment

- Fluentd version:
- TD Agent version:
- Fluent Package version:
- Docker image (tag):
- Operating system:
- Kernel version:

[Watson1978]

Can you attach the installation log?
You can get it with following command:

msiexec /i fluent-package-6.0.1-x64.msi /L*V install_log.txt

[Watson1978]

First, please clean up the leftover files and services from the failed installation:

1. Open Command Prompt as an Administrator and run:

sc delete fluentdwinsvc

2. Delete the C:\opt directory.

3. After cleaning up, open PowerShell as an Administrator and change the execution policy by running the following command:

Set-ExecutionPolicy RemoteSigned -Scope LocalMachine

Once the execution policy is updated, please try running the installer again.

[Watson1978]

The problem will be resolved by fluent/fluent-package-builder#982

[Fab-D-42]

Hi Watson1978,

Thank you for the answer.

I've tried your solution and the one in the post fluent/fluent-package-builder#982 without success.

You can below few screenshot and enclosed the log file.

[install_log.zip](https://github.com/user-attachments/files/25567930/install_log.zip)

[Watson1978]

It seems changing the policy to RemoteSigned was not enough in your environment. This is often caused by strict Windows Group Policies (GPO) or the "Mark of the Web" (Windows treating the downloaded file as an untrusted remote file, which still requires a signature).

If you need to install it immediately today, please try these two extra steps:

1. Right-click the fluent-package-6.0.1-x64.msi file, select Properties, check the Unblock box at the bottom of the General tab, and click OK.
2. Run PowerShell as an Administrator and temporarily set it to Bypass:
   Set-ExecutionPolicy Bypass -Scope LocalMachine

However, the most guaranteed solution is to wait for the upcoming release.
We have already fixed this exact issue by ensuring the installer safely bypasses these policy checks automatically. This fix is included in v6.0.2, which is scheduled to be released tomorrow.

If the workaround above still doesn't work, please wait for tomorrow's v6.0.2 release. Thank you for your patience!

[Fab-D-42]

If a new version is scheduled to be released tomorrow I will wait for it.
Thank you for your support

[Watson1978]

We have released v6.0.2
Ref. #5266

Can you try it?

[Fab-D-42]

Just try it and it works !

Thank you for quick and useful help.

[Fab-D-42]

install_log.zip

[Fab-D-42]

sorry I forgot to put the log in my previous post...