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My windows store application worked fine before, but last time background downloading didn't work. The behaviour is very strange.

Downloading progress works, I can see it on the progress bar.

But at the end there is a COMException with message:

Error HRESULT E_FAIL has been returned from a call to a COM component.
HResult = 0x80004005.`

There is a downloaded file in the Downloads folder but with zero size. And not only my app has that behaviour. Default email client downloads attachments with zero size in the same way. How to fix this? Any idea?

mc110
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IL_Agent
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  • E_FAIL is only a teacher's grade for the quality of the error reporting that the Microsoft programmer did, it doesn't tell you what went wrong. You'll have to putz around to find a possible reason. – Hans Passant Jul 02 '14 at 22:55
  • I think it's something with my system. I'm going to try to repair it with install cd... – IL_Agent Jul 03 '14 at 04:15

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