Elevated CMD Prompt

runas /noprofile /user:Administrator cmd

or

run cmd as admin
type in: takeown /f C:\Windows\System32\ (what you want to get into)

or

devxexec.exe /user:TrustedInstaller cmd

c:\utility\devxexec.exe /user:TrustedInstaller cmd

c:\utility\devxexec.exe /user:Administrator cmd

devxexec.exe /user:Administrator pc2 cmd