well- it actually installed on one of my devices...not even sure what I did.
The so-called "start" button...TOTAL FAIL all it does it take you to the tile screen....Win 8 sucks for business.
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I tried to install 8.1, and after downloading and appearing to install, my PC hang for about 2 hours. I reboooted and recieved a message that 8.1 could not be installed, and reverting to 8.0. Error message 0xC1900101-0x40019
This morning I again tried to install from the Store, and immediately got a message This app was not installed. Error message 0x80070652
Any idea as to how to install 8.1?
Chuck
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well- it actually installed on one of my devices...not even sure what I did.
The so-called "start" button...TOTAL FAIL all it does it take you to the tile screen....Win 8 sucks for business.
I have the same error and so far there is nothing on the Microsoft web site, only here on the forum, which is useless. Microsoft needs to get on this.

I ran the Upgrade Assistant (with no problems found) and then tried repeatedly to install the 8.1 update. But it failed every time a couple minutes into the download with error 0x80070652. Then I found this message thread.
After trying various suggestions, this is what ended up working for me:
I don't know why it was necessary to clear the Store cache twice, but when I did that is when it finally worked.
Me too from Italy. Ridicolous update. I losed a lot of time. Tried 5 times to install. Nothing to do! Infinite loop cycle with black screen. I tryed 4 times with clean install from italian instruction, I unistalled driver nvidia drivers video and audio. It's the worst update I've ever seen since Ms-Dos 3.1.