Ok here is were I am coming from. I run a PC repair service. All was good till recently. All of a sudden I am repairing machines for 'friends or freinds of freinds'. My problem is getting paid for my work! I know I should be a hard ass and not release a machine until it is paid for but I am a softie. All of a sudden I find myself with hundreds of dollars of hardware out there that I cannot collect on. My question is, is there a timer app I can put on machines that will lock it down until I give the Ok to run?