# Intel Mkl Windows building

**URL:** <https://discourse.julialang.org/t/intel-mkl-windows-building/25033>\
**Category:** Internals & Design\
**Tags:** windows, blas, mkl, build\
**Created:** [June 7, 2019, 6:44am UTC](https://discourse.julialang.org/t/intel-mkl-windows-building/25033 "2019-06-07T06:44:56Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![dawbarton](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dawbarton/32/215461_2.png) [@dawbarton](https://discourse.julialang.org/u/dawbarton)\
**Post date:** [June 10, 2019, 8:40am UTC](https://discourse.julialang.org/t/intel-mkl-windows-building/25033/20 "2019-06-10T08:40:25Z")

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> [@Amin\_Yahyaabadi](#):
>
> However, when I ran this code after it still says it is openBlas.

Yes, this what should happen; the new sysimg will only take effect once Julia is restarted.

> [@Amin\_Yahyaabadi](#):
>
> and now when I restart my Julia this is the result:  
> `Intel MKL FATAL ERROR: Cannot load mkl_intel_thread.dll.`

That means the required dlls are not on the Windows path. You need to add the location that it was installed to your path - for me that is `C:\Users\dawbarton\.julia\packages\MKL\36eeJ\deps\usr\bin`. After that it should all work (at least it does for me!).

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