Why is the download stuck at around 70%?

My UE4 launcher won’t proceed downloading the engine past 70% when downloading both version 4.0.2 and 4.1.1

At first it downloads fine with 2mb/s, but when it’s at around 65% or 69%, the download information dissapears and it quickly jumps to 72% and then restarts again from around 50%, only to repeat the process over and over and over again until I eventually receive the error “A file corruption has occurred”.

I tried removing the whole program and reinstalling it again, running as administrator, changing the engine configuration file by making the timeout period bigger and I’ve downloaded the quickfix that people used when their download got stuck at 80%.

Can anyone help me out? I’m eager to start using this engine.

I’m using Windows 7 64bit

After reading someone else’s solution I noticed that the engine doesn’t like to be installed outside of the C drive. (I installed it on my D drive)

When I reïnstalled everything within C:\Program Files\ it worked!