> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/server-management/install-and-upgrade-mariadb/installing-mariadb/troubleshooting-installation-issues/installation-issues-on-windows.md).

# Installation issues on Windows

## Unsupported Versions of Windows

Recent versions of MariaDB may not install on unsupported Windows versions. See [Deprecated Package Platforms](/docs/release-notes/community-server/about/platform-deprecation-policy.md) to find the final supported versions.

## Systems with User Account Control

Running `mysql_install_db.exe` from a standard command prompt might cause the error:

```
FATAL ERROR: OpenSCManager failed
```

To get rid of it, use the elevated command prompt, for example on Windows 7 start it via 'Run as administrator' option.

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