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Error 0x800705AA when you try to upgrade a Windows 8-based virtual machine to Windows 8.1

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Symptoms

You can’t upgrade a Windows 8-based virtual machine that is running in a Virtual Desktop Infrastructure (VDI) environment to Windows 8.1. Additionally, you receive the following error message when the virtual machine restarts during the upgrade:

Couldn’t update to Windows 8.1

Sorry we couldn’t complete the update to Windows 8.1 We’ve restored your previous version of Windows to this pc.

0x800705AA – 0x2000C

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Cause

Certain phases of the upgrade require more memory than the default startup RAM (512 megabytes [MB]). This issue occurs because dynamic memory isn’t enabled during those phases of the upgrade.

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Workaround

To work around the issue, increase the startup RAM for the VM to 2 gigabytes (GB) in the Hyper-V manager before you upgrade. You can set the startup RAM back to the default after the upgrade is complete. 

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More Information

For more information about dynamic memory, see Hyper-V Dynamic Memory Overview.

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Keywords: kbtshoot, kbexpertiseadvanced, kbsurveynew, kb

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Article Info
Article ID : 2878739
Revision : 1
Created on : 1/7/2017
Published on : 7/29/2015
Exists online : False
Views : 482