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Hyper-V Best Practice Analyzer (BPA) does not exit

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Symptoms

Hyper-V Best Practice Analyzer (BPA) does not exit and memory is consumed gradually under the following conditions:
  • A virtual machine already exists.
  • The virtual machine is connected to a vhd or vhdx as the hard disk drive. However, the vhd or vhdx file itself is renamed or deleted, and does not exist in reality.

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Cause

The PowerShell script as seen here runs internally when running the Hyper-V BPA:

C:\Windows\System32\BestPractices\v1.0\Models\Microsoft\Windows\Hyper-V\Hyper-V.ps1

However, due to a defect in the script, the information retrieval process goes into a loop, and the BPA does not exit until timeout.

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Workaround

You need to delete the non-existing vhd or vhdx from the virtual machine settings, and then rerun BPA for Hyper-V by following these steps:
  1. Start Hyper-V Manager.
  2. Select the virtual machine that is connected to a non-existing vhd or vhdx, then right-click and open Settings.
  3. From the virtual machine settings window, click on the non-existing hard drive, and then click Delete.
  4. Click OK to close the virtual machine setting window.
  5. Rerun BPA for Hyper-V from Server Manager.



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Keywords: kbexpertiseadvanced, kbsurveynew, kbtshoot, kb

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Article Info
Article ID : 2989384
Revision : 1
Created on : 1/7/2017
Published on : 8/13/2014
Exists online : False
Views : 221