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Question by Suppapa · Sep 15, 2014 at 10:20 PM · install

NSIS Error

So when I download Unity 4.5.4 it works just fine but, when I try starting it up it says, "NSIS ERROR integrity failure or something" And I tried putting it in cmd, I tried clean booting my computer and nothing worked. Can you help me?

32-bit, nivida geforce graphics, 4 gigs ram

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smoggach · Sep 15, 2014 at 11:48 PM 4

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Try being a little more specific with your question. I'm confused as to what "it" is and how "it" managed to "work" when you "download" and not when you "start it up"

Suppapa · Sep 16, 2014 at 12:06 AM 0

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I tried re installing it.

smoggach · Sep 16, 2014 at 12:08 AM 0

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Have you tried re-downloading it? i've only ever seen this from corrupt installers

Kiwasi · Sep 16, 2014 at 03:52 AM 0

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I've not had an "or something" error message in a while. Its always worth posting the full message.

Antivirus software sometimes interferes with installing Unity.

Also worth checking that your installer came from the official Unity site.

If the problem persists then submit a bug report.