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Unreal 4 - Cannot Install, File Corrupt

It never finished installing, after the initial 7 Gig load, it goes back and downloads again in a loop.

When it DOES finish installing, it says Cannot Install, Installation Corrupt, or something of the sort.

Please help !

Product Version: Not Selected
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asked Mar 22 '14 at 09:06 PM in Installation & Setup

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Hi J_U_D_G_E,

There is a known issue where certain failures cause full re-downloads. If you are running windows we have a hotfix that will help you, follow the answer at



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answered Mar 22 '14 at 09:10 PM

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leighswift STAFF
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Thank you so much, I've cancelled my subscription due to this, for this month, because I could never even get the product to install correctly.

Is it possible, to re-activate my subscription now that the product is working correctly ? I subscribed only 2 days ago, seems if I wanna re-subscribe for this month, I have to pay again.

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answered Mar 22 '14 at 09:18 PM

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avatar image Ben Halliday STAFF Mar 22 '14 at 09:21 PM

Hey Judge,

As long as you didn't ask for a refund, your account is still active. You will need to re-establish a payment method if you would like to continue getting updates after that. If not, you still have all the benefits of a subscription until the month runs out, and even after that you can still use the engine!

Hope that answers your question!

Ben Halliday

avatar image J_U_D_G_E Mar 22 '14 at 09:27 PM

Thank you so much !

avatar image Igor Cardoso Apr 27 '14 at 01:37 PM

I have tried everything this post says, still with the same problem... See my logs! link text

logs.zip (501.3 kB)
avatar image Steve Allison STAFF Apr 27 '14 at 09:18 PM


This issue was for the initial 4.0 release, we're going to mark this thread as resolved and we'll monitor the issue in 4.1 in another thread:


Thanks! -Steve

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