cmd as Administrator
takeown /F "c:\windows\system32" /A
takeown /F "c:\windows\system32\*.*" /A
takeown /F "c:\windows\syswow64" /A
takeown /F "c:\windows\syswow64\*.*" /A

rem ALL_APPPLICATION_PACKAGES (S-1-15-2-1)
rem ALL_RESTRICTED_APPLICATION_PACKAGES (S-1-15-2-2)

rem icacls.exe C:\windows\system32 /C /grant "APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES":F
rem icacls.exe C:\windows\system32 /C /grant "APPLICATION PACKAGE AUTHORITY\ALL RESTRICTED APPLICATION PACKAGES":F
icacls.exe C:\windows\system32 /C /grant *S-1-15-2-1:F
icacls.exe C:\windows\system32 /C /grant *S-1-15-2-2:F
icacls.exe C:\windows\system32 /C /grant "NT AUTHORITY\SYSTEM" :F
icacls.exe C:\windows\system32 /C /grant BUILTIN\Administrators:F
icacls.exe C:\windows\system32 /C /grant BUILTIN\Users:F
icacls.exe C:\windows\system32 /C /grant "NT SERVICE\TrustedInstaller" :F

rem icacls.exe C:\windows\system32\*.* /C /grant *S-1-15-2-1:F
rem icacls.exe C:\windows\system32\*.* /C /grant *S-1-15-2-2:F
icacls.exe C:\windows\system32\*.* /C /grant *S-1-15-2-1:F
icacls.exe C:\windows\system32\*.* /C /grant *S-1-15-2-2:F
icacls.exe C:\windows\system32\*.* /C /grant "NT AUTHORITY\SYSTEM":F
icacls.exe C:\windows\system32\*.* /C /grant BUILTIN\Administrators:F
icacls.exe C:\windows\system32\*.* /C /grant BUILTIN\Users:F
icacls.exe C:\windows\system32\*.* /C /grant "NT SERVICE\TrustedInstaller":F

rem icacls.exe C:\windows\syswow64 /C /grant "APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES":F
rem icacls.exe C:\windows\syswow64 /C /grant "APPLICATION PACKAGE AUTHORITY\ALL RESTRICTED APPLICATION PACKAGES":F
icacls.exe C:\windows\syswow64 /C /grant *S-1-15-2-1:F
icacls.exe C:\windows\syswow64 /C /grant *S-1-15-2-2:F
icacls.exe C:\windows\syswow64 /C /grant "NT AUTHORITY\SYSTEM" :F
icacls.exe C:\windows\syswow64 /C /grant BUILTIN\Administrators:F
icacls.exe C:\windows\syswow64 /C /grant BUILTIN\Users:F
icacls.exe C:\windows\syswow64 /C /grant "NT SERVICE\TrustedInstaller" :F

rem icacls.exe C:\windows\syswow64\*.* /C /grant *S-1-15-2-1:F
rem icacls.exe C:\windows\syswow64\*.* /C /grant *S-1-15-2-2:F
icacls.exe C:\windows\syswow64\*.* /C /grant *S-1-15-2-1:F
icacls.exe C:\windows\syswow64\*.* /C /grant *S-1-15-2-2:F
icacls.exe C:\windows\syswow64\*.* /C /grant "NT AUTHORITY\SYSTEM":F
icacls.exe C:\windows\syswow64\*.* /C /grant BUILTIN\Administrators:F
icacls.exe C:\windows\syswow64\*.* /C /grant BUILTIN\Users:F
icacls.exe C:\windows\syswow64\*.* /C /grant "NT SERVICE\TrustedInstaller":F