# NSIS error

**URL:** <https://forum.navigraph.com/t/nsis-error/5209>\
**Category:** General non MSFS data\
**Created:** [June 1, 2021, 1:03am UTC](https://forum.navigraph.com/t/nsis-error/5209 "2021-06-01T01:03:59Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![stephen](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/stephen/32/10435_2.png) [@stephen](https://forum.navigraph.com/u/stephen)\
**Post date:** [June 1, 2021, 6:54pm UTC](https://forum.navigraph.com/t/nsis-error/5209/4 "2021-06-01T18:54:09Z")

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Hi,

What Windows version are you running?

I have not seen this issue before, so it must be something interfering in your firewall or antivirus that makes the installers corrupt.

Regards,

Stephen

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