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[Issue]: The PREP phase is running each time a R/O vDisk has started. #390

@antonvanpelt

Description

@antonvanpelt

Describe the bug

The AfterPrep setting in registry seems to be applied after the VHD got dismounted. This means that the vDisk has still the AfterInst setting in registry. This causes the BIS-F framework to kickoff both the PREP and PERS phase as soon as the vDisk has started in read-only mode.

We're not using custom scripts, we're applying BIS-F settings by registry and not via GPO

If you check the PREP logfile on the reference VM you'll see that the VHD got dismounted before the state changes into AfterPrep, which explains the AfterInst state in the offline VHD registry.

Steps to reproduce

  • Mount the sealed VHD on another Windows machine
  • Load the offline HKLM\Software registry hive (mounted driveletter\Windows\System32\Config\SOFTWARE\
  • Check the Registry setting in loaded hive\Login Consultants\BISF\LIC_BISF_PersState

Expected behavior

Setting should be AfterPrep instead of AfterInst in the offline sealed VHD.

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