# Installation problems

**URL:** <https://discourse.mcneel.com/t/installation-problems/2961>\
**Category:** Rhino for Windows\
**Created:** [October 10, 2013, 8:57am UTC](https://discourse.mcneel.com/t/installation-problems/2961 "2013-10-10T08:57:30Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [October 10, 2013, 8:57am UTC](https://discourse.mcneel.com/t/installation-problems/2961/1 "2013-10-10T08:57:30Z")

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Hello,

installing the V5/32 trial doesn’t work:

 ![](https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/b/1/b12f26421be3dd2e120a7cd8ced984e3b9ac01d6.png) 

The .net framework is still there.  
Also the manual installation of .net4, recommended in the error message, doesn’t help.  
The same error message comes up when trying to install Rhino again.

What can we do?

Thanks,  
-C-H-A-R-L-E-S-

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**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [October 10, 2013, 9:22am UTC](https://discourse.mcneel.com/t/installation-problems/2961/2 "2013-10-10T09:22:02Z")

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Any of the stuff [on this page](http://wiki.mcneel.com/rhino/installproblems) help? (thinking specifically of “.NET Framework 4 Required: Rhino 5 installer keeps asking for .NET Framework 4”, mid page…

–Mitch

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**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [October 10, 2013, 9:51am UTC](https://discourse.mcneel.com/t/installation-problems/2961/3 "2013-10-10T09:51:11Z")

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Oh what a shame.  
I didn’t know this page.

Thanks for the hint.

I’ll report back if it now works or not.

Thanks,  
-C-H-A-R-L-E-S-

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**Author:** ![Charles](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/charles/32/772919_2.png) [@Charles](https://discourse.mcneel.com/u/Charles)\
**Post date:** [October 10, 2013, 2:45pm UTC](https://discourse.mcneel.com/t/installation-problems/2961/4 "2013-10-10T14:45:38Z")

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No, didn’t help.  
Same as before.  
While I’m not sure the prospective customer did it all right…

Other ideas?

Thanks,  
-C-H-A-R-L-E-S-

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**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [October 10, 2013, 3:06pm UTC](https://discourse.mcneel.com/t/installation-problems/2961/5 "2013-10-10T15:06:50Z")

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Not from me - that’s now above my pay grade - I guess @brian will need to jump in here…  
Sorry, --Mitch

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**Author:** ![brian](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/brian/32/504171_2.png) [@brian](https://discourse.mcneel.com/u/brian)\
**Post date:** [October 10, 2013, 3:41pm UTC](https://discourse.mcneel.com/t/installation-problems/2961/6 "2013-10-10T15:41:05Z")

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Hi Charles,

Does this page help? It has a section for this problem.

[wiki.mcneel.com/rhino/installproblems](http://wiki.mcneel.com/rhino/installproblems)

—  
Brian Gillespie

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**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [October 10, 2013, 3:43pm UTC](https://discourse.mcneel.com/t/installation-problems/2961/7 "2013-10-10T15:43:44Z")

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I posted that link earlier, it doesn’t appear to have helped according to Charles…  
–Mitch

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**Author:** ![brian](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/brian/32/504171_2.png) [@brian](https://discourse.mcneel.com/u/brian)\
**Post date:** [October 10, 2013, 7:06pm UTC](https://discourse.mcneel.com/t/installation-problems/2961/8 "2013-10-10T19:06:06Z")

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The trick is the .NET repair tool, I think. If that fails, remove .NET 4.0 Extended and try a reinstall.

—  
Brian Gillespie