Something escapes me when trying to use runas to elevage privilege. Simple Win10 machine with single user who already has admin rights. I need to write in a specific registry key via script, but I get "access denied" when I try with the reg command directly.
> reg ... ERROR: Access is denied.
If I try:
> runas /user:Administrator Command Enter the password for Administrator: 1326: The user name or password is incorrect.
It refuses my user password. I don't think there's a specific administrator password on a local machine, right ? There's no other account.
> runas /user:MyUser Command Enter the password for MyUser: 740: The requested operation requires elevation
So how do I elevate privileges from the command line ?!?
Why can't I see that I have admin rights here:
>runas /showtrustlevels The following trust levels are available on your system: 0x20000 (Basic User)
Maybe I should be more clear about what I want to do. From a C program I want to make a change to WT_KEY_HKLM, "Software\Microsoft\Windows\CurrentVersion\Run". I could do this directly in XP, but in more recent versions of Windows, it has no effect. And indeed, running "reg" on this key from the command line gives access denied. I don't want to run my program with elevated privileges, so muy idea was to do something like system("runas reg …") where it would ask for the password and make the registry change. But I can't even get the command to work from the command line. Maybe someone can suggest the proper way to do that ?