# Upgrading to Elixir Failed Windows 11

**URL:** <https://forum.elixirforum.com/t/upgrading-to-elixir-failed-windows-11/47335>\
**Category:** Questions\
**Tags:** install\
**Created:** [April 20, 2022, 3:45pm UTC](https://forum.elixirforum.com/t/upgrading-to-elixir-failed-windows-11/47335 "2022-04-20T15:45:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mogul52](https://forum.elixirforum.com/letter_avatar_proxy/v4/letter/m/439d5e/32.png) [@mogul52](https://forum.elixirforum.com/u/mogul52)\
**Post date:** [April 20, 2022, 3:45pm UTC](https://forum.elixirforum.com/t/upgrading-to-elixir-failed-windows-11/47335/1 "2022-04-20T15:45:52Z")

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I’m just learning Elixir. I had an earlier version of Elixir I installed on Windows 10. Worked perfectly. I’ve since upgraded Windows 11. I installed the latest version of Elixir. Install worked perfectly, no errors. When I do an elixir -v from terminal I get the following. I looked all over and I can’t find a solution.

```elixir
D:\userdata>elixir -v
{"init terminating in do_boot",{undef,[{elixir,start_cli,[],[]},{init,start_em,1,[{file,"init.erl"},{line,1115}]},{init,do_boot,3,[{file,"init.erl"},{line,823}]}]}}
init terminating in do_boot ({undef,[{elixir,start_cli,[],[]},{init,start_em,1,[{_},{_}]},{init,do_boot,3,[{_},{_}]}]})

Crash dump is being written to: erl_crash.dump...done

```

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<div class="post-metadata">

**Author:** ![mogul52](https://forum.elixirforum.com/letter_avatar_proxy/v4/letter/m/439d5e/32.png) [@mogul52](https://forum.elixirforum.com/u/mogul52)\
**Post date:** [April 21, 2022, 2:01pm UTC](https://forum.elixirforum.com/t/upgrading-to-elixir-failed-windows-11/47335/2 "2022-04-21T14:01:20Z")

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Got it to work. I thought when you installed new version of Elixir it would install a compatible version of Erlang. I uninstalled Elixir and Erlang. Installed latest version of Erlang and latest version of Elixir. Remove old Erlang path from path variable. It worked.

```elixir
D:\>elixir -v
Erlang/OTP 24 [erts-12.3.1] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [jit]

Elixir 1.13.4 (compiled with Erlang/OTP 22)

```

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<div class="post-metadata">

**Author:** ![wanton7](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/wanton7/32/14151_2.png) [@wanton7](https://forum.elixirforum.com/u/wanton7)\
**Post date:** [April 24, 2022, 6:57am UTC](https://forum.elixirforum.com/t/upgrading-to-elixir-failed-windows-11/47335/3 "2022-04-24T06:57:17Z")

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I have had this same problem on Windows 10. When upgrading I always just uninstall Elixir, uninstall Erlang then install new version of Elixir.