Hi,

I am Admin of a Windows Server 2012 R2, I have installed successfully Python 3.9.5 (64-bit) however I cannot uninstall it, I get the error: "0x80070659 - The installation is forbidden by system policy. Contact your system administrator"

I don't have any software system policies defined on this server so this could be a Python bug.

attached the log.

Regards,
Ricardo

Unfortunately, I've got no idea whether it's failing to uninstall the MSI or if it's specific to removing the PATH environment variable. If you've still got the rest (no more than 2-3 I'd expect) of the uninstall log files in your %TEMP% directory that may show something.

Have you successfully installed/uninstalled other versions of Python before on this machine/OS?

Hi Steve,

I am attaching the latest log files I see on temp.

This is the first version of python I have installed on this server, we do
install and uninstall SW on this machine all the time. As we run the
operations and need to update sw there often.

Thanks,

Regards,
Ricardo

On Tue, Jun 1, 2021 at 10:19 PM Steve Dower <report@bugs.python.org> wrote:

>
> Steve Dower <steve.dower@python.org> added the comment:
>
> Unfortunately, I've got no idea whether it's failing to uninstall the MSI
> or if it's specific to removing the PATH environment variable. If you've
> still got the rest (no more than 2-3 I'd expect) of the uninstall log files
> in your %TEMP% directory that may show something.
>
> Have you successfully installed/uninstalled other versions of Python
> before on this machine/OS?
>
> ----------
>
> _______________________________________
> Python tracker <report@bugs.python.org>
> <https://bugs.python.org/issue44238>
> _______________________________________
>

I see this line in your log:

Rejecting product '{6504EEE5-2172-4D34-A76D-0372356396B4}': Non-assigned apps are disabled for non-admin users.

I'm not entirely sure what it means, or how you managed to install it under this apparent restriction, but it looks like the issue.

I'll have to take some time to research it, but someone else may figure it out first, so wanted to post this much.