Windows 8.1 upgrade error: 0x800705AA – 0x2000C

Windows 8.1

While testing the Enterprise Edition upgrade for Windows 8.1 I received the following error message:

We couldn’t install Windows 8.1. We’ve set your PC back to the way it was right before you stared installing Windows 8.1.

Error code: 0x800705AA – 0x2000C

I was using Hyper-V with dynamic memory set at 512MB. During certain phases of the upgrade 512MB isn’t enough memory. The recommended amount for the upgrade is 2GB.

We couldnt install windows 8.1 0x800705AA-0x2000CSee KB2878739 for more details.

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