# How to check if you're running Julia on win32?

**URL:** <https://discourse.julialang.org/t/how-to-check-if-youre-running-julia-on-win32/11165>\
**Category:** General Usage\
**Created:** [May 26, 2018, 1:54pm UTC](https://discourse.julialang.org/t/how-to-check-if-youre-running-julia-on-win32/11165 "2018-05-26T13:54:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![anriseth](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/anriseth/32/3106_2.png) [@anriseth](https://discourse.julialang.org/u/anriseth)\
**Post date:** [May 26, 2018, 1:54pm UTC](https://discourse.julialang.org/t/how-to-check-if-youre-running-julia-on-win32/11165/1 "2018-05-26T13:54:56Z")

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AppVeyor win32 fails because I’m running tests that use HigherPrecision.jl  
Is there a way to check whether we are on win32, in the same fashion I can call  
`is_windows()`?

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**Author:** ![mohamed82008](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mohamed82008/32/18171_2.png) [@mohamed82008](https://discourse.julialang.org/u/mohamed82008)\
**Post date:** [May 26, 2018, 2:08pm UTC](https://discourse.julialang.org/t/how-to-check-if-youre-running-julia-on-win32/11165/2 "2018-05-26T14:08:35Z")

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`Sys.WORD_SIZE` [https://docs.julialang.org/en/stable/manual/integers-and-floating-point-numbers/](https://docs.julialang.org/en/stable/manual/integers-and-floating-point-numbers/), or `1 isa Int32`.