Originally posted by Chrom3D
Good to hear you found a solution.
And just incase you didn't know, you can make a bat file easily. Open notepad, write the code. In this case: net localgroup "Thegroup(administrators)" "yourusename" /add and then just save it as something.bat
EDIT, He got his answer, this thread should be moved to "Answered Questions" section =D
Ofc, you need notepad to make a .bat file. Didn't come as a surprise, no offence.
EDIT:
If anyone is confused and can't make the .bat file to work with notepad.
Remember, to select *Save as; then select .bat or "all files"
Just wanted to throw that out.
Edit:
This is now answered and should be moved to, answered questions section.