InitSystemShutdown for remote system in c++

I have used Visual studio 2022 for InitSystemShutdown method to shutdown remote system,the problem is that when I try to run visual studio in admin mode,InitiateSystemShutdown is working perfectly but when I try to run same in normal user mode,it throws " ERROR_NOT_ALL_ASSIGNED # Not all privileges or groups referenced are assigned to the # caller,what would be the problem?

                bool ShutdownSystem() {
            HANDLE hToken;
            TOKEN_PRIVILEGES tkp;
            BOOL fResult;
            DWORD dwSize = 0, dwResult = 0;

            if(!OpenProcessToken(GetCurrentProcess(), TOKEN_ALL_ACCESS, &hToken))
            return FALSE;

            LookupPrivilegeValue(NULL, SE_REMOTE_SHUTDOWN_NAME,
                                &tkp.Privileges[0].Luid);
            tkp.PrivilegeCount = 1; // one privilege to set
            tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
            AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0);

            if(GetLastError() != ERROR_SUCCESS)
            {
            std::cout << "Printing GetLastError Msg" << GetLastError();
            return FALSE;
            }
            fResult = InitiateSystemShutdown(
                (LPSTR) "DESKTOP-KH3VE5E", // shut down remote computer
                (LPSTR) "Shutdown called",                // message for user
                10,                         // time-out period, in seconds
                FALSE,                      // ask user to close apps
                FALSE);                      // reboot after shutdown

            int s = GetLastError();
            std::cout << s;

            if(!fResult)
            return FALSE;
            // Disable shutdown privilege.
            tkp.Privileges[0].Attributes = 0;
            AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0);

            return TRUE;
            }

            int main()
            {
            bool retVal = ShutdownSystem();
            return 0;
            }