Can't uninstall 2.9.2 on Win/IIS 10

[dmarlow]

I get a popup saying "This setup requires IIS 7.0 or 8.0"

[victorhora]

Hi @dmarlow,

I believe your issue might be related to #931 which should be fixed by 51f1ff6

Could you please provide more details? You were able to install but no uninstall / reinstall?

[victorhora]

@dmarlow

I've noticed there's already an issue open for this case here: #1122

I'm tagging #1122 for further investigation prior to 2.9.3 release. This being said, do you mind sharing those details on that issue so as to avoid duplicates?

Thanks!

[victorhora]

Closing due lack of feedback. #1122 remains tagged for further investigation prior to 2.9.3 release.

[victorhora]

Following up on the MSI issues reported at #1122 / #948, I can confirm that the issue reported here happens on Windows 10.

The problem seems to be related with the condition MSIUSEREALADMINDETECTION set here not being satisfied by default.

I believe it has to do with the that Windows 10 handles "RunAs" here. If you simply re-run the installer as Administrator, the uninstaller will work as expected.

There should be multiple ways to do this on Windows 10, but one that worked for me was running cmd.exe as Administrator and then running msiexec /i ModSecurityIIS_A.B.C-Zb.msi.
This will make sure that the MSI is run as admin and then uninstallation should work as expected

Alternatively, one should be able to uninstall also by simply heading to the "Apps & features" (aka "Add/Remove Programs") and select to trigger the uninstaller from there. This method correctly triggers the UAC prompt and the uninstall works as expected. See below for reference:

[victorhora]

Commit 1843b79 make the error message more helpful for these edge cases.

Thanks for your report @dmarlow :)

[mwahl217]

https://support.microsoft.com/en-us/help/17588/windows-fix-problems-that-block-programs-being-installed-or-removed

Clean up the dll files (2018) under system32 and syswow