How to reset permissions in Windows 10 repair environment

I can't boot into Windows 10. I found the permissions are not correct.I booted into the recovery environment.I put this in a bat file:

c:Icacls * /t /q /c /reset

and ran it as administrator.In the command window.What came back was:

C:\>Icacls * /t /q /c /reset$RECYCLE.BIN: Access is denied.$WINDOWS.~BT: Access is denied.$WINDOWS.~LS: Access is denied.$WinREAgent: Access is denied.Batch: Access is denied.boot: Access is denied.Config.Msi: Access is denied.Dnload: Access is denied.Documents and Settings: Access is denied.FRST: Access is denied.Intel: Access is denied.PerfLogs: Access is denied.Program Files: Access is denied.Program Files (x86): Access is denied.ProgramData: Access is denied.Programs: Access is denied.QualityStats: Access is denied.Recovery: Access is denied.System Volume Information: Access is denied.Temp: Access is denied.Users: Access is denied.Windows: Access is denied.Successfully processed 13 files; Failed processing 44 files

All the folders and files have full permissions to these users and only these users:

S-1-5-21-347274278-327469549-447400862-500S-1-5-21-347274278-327469549-447400862-1002S-1-5-21-1955918374-137175358-2764517612-1000

I've been trying to figure out how to change the owner to my user and add full control to my user.

How can I fix the Access is denied so I can reset the Windows 10 permissions?

I would expect to see:

• Windows folder Owner TrustedInstaller
• Allow Trustratingly Full control
• Allow System Modify This folder only
• Allow System Full control Subfolders and files only
• Allow Administrators Modify This folder only
• Allow Administrators Full control Subfolders and files only
• Allow Users Read & execute
• Allow Creator Owner Full control
• Allow All Application Packages Read & execute
• Allow All Restricted Application Packages Read & execute

What I actually see for permissions Is:

Account Unknown(S-1-5-21-347274278-327469549-447400862-500) Account Unknown(S-1-5-21-347274278-327469549-447400862-1002) Account Unknown(S-1-5-21-1955918374-137175358-2764517612-1000) 

All of the above folders have the same three permissions.

I don't know how to see the permissions within WinRE. I need to find a way to change the permissions so I can fix Windows 10. This PC is a dual boot. I also have a bootable USB drive where I can see the permissions from.

From Windows recovery I am getting Access Denied when trying to open C:\windows. What would you suggest?

How would you suggest I troubleshoot Windows 10 not booting up?