# Unable to reinstall release channel with Juliaup

**URL:** <https://discourse.julialang.org/t/unable-to-reinstall-release-channel-with-juliaup/121210>\
**Category:** General Usage\
**Tags:** juliaup\
**Created:** [October 11, 2024, 10:47pm UTC](https://discourse.julialang.org/t/unable-to-reinstall-release-channel-with-juliaup/121210 "2024-10-11T22:47:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ElMissas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/elmissas/32/212593_2.png) [@ElMissas](https://discourse.julialang.org/u/ElMissas)\
**Post date:** [October 11, 2024, 10:47pm UTC](https://discourse.julialang.org/t/unable-to-reinstall-release-channel-with-juliaup/121210/1 "2024-10-11T22:47:46Z")

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I was using Julia 1.10 in the `release` channel, and I updated it to 1.11. However, this version was giving me some problems with precompiling packages, so I wanted to downgrade to 1.10.  
I used `juliaup add 1.10` to add the 1.10 channel and then deleted the `release` channel. Now I’m trying to reinstall the `release` channel but it won’t let me. I get this:

```julia
PS C:\WINDOWS\system32> juliaup add release
Installing Julia 1.11.0+0.x64.w64.mingw32
Error: Failed to extract downloaded file from url `https://julialang-s3.julialang.org/bin/winnt/x64/1.11/julia-1.11.0-win64.tar.gz`.

Caused by:
    0: failed to unpack `julia-1.11.0/share/julia/base/abstractarray.jl` into `C:\Users\missa\.julia\juliaup\julia-1.11.0+0.x64.w64.mingw32\share\julia\base\abstractarray.jl`
    1: Acceso denegado. (os error 5)

```

It says “access denied” even though I’m running PowerShell as admin. I’m on Windows 10 and I’m using Juliaup version 1.17.4.

---

<div class="post-metadata">

**Author:** ![ElMissas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/elmissas/32/212593_2.png) [@ElMissas](https://discourse.julialang.org/u/ElMissas)\
**Post date:** [October 11, 2024, 11:47pm UTC](https://discourse.julialang.org/t/unable-to-reinstall-release-channel-with-juliaup/121210/2 "2024-10-11T23:47:14Z")

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Solved. After deleting the 1.11 folder manually from file explorer (`C:\Users\[user]\.julia\juliaup`), I ran `juliaup add release` and it worked.