PowerShell 2.0 Installation Error

I was trying to install PowerShell 2.0 and kept getting an error part way through that simply told me that access was denied while installing the Windows Management Framework Core. The installation was then rolled back. I tried a few times, with local and domain administrator accounts but to no avail. The following event was logged each time in the system event log:

After some poking around I found that the local Administrators group did not not have Full Control of the registry key HKLM\Software\Microsoft\Windows NT\CurrentVersion\Svchost to which it was trying to write.

Just thought I’d share this in case anyone else encountered it.

Michael is a Senior Consultant for Xtravirt. If it's got buttons or flashy lights on it then it'll probably be on his radar. When not "mending computers" (it's sometimes easier than explaining "cloud" to relatives), Michael provides essential education, entertainment and trampoline services to his two children.


  1. mmarkwitzz says

    you rule! had to do this over the weekend, you just saved an hour of fiddling with procmon.

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