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Error ‘The system administrator has set policies to prevent this installation’ when installing MOS SIA

October 3, 2014


Symptoms

Error message ‘The system administrator has set policies to prevent this installation’ when attempting to install Microsoft Online Services Sign-In Assistant for IT Professionals RTW:

The system administrator has set policies to prevent this installation


Resolution

  1. Open Regedit
  2. HKLM\Software\Policies\Microsoft\Windows\Installer
  3. Create a REG_DWORD called DisableMSI
  4. Set value = 0
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