Here is the situation. Our company has just over 300 computers in 90 offices spread across 4 different states. The computers are old and runnings Windows XP. I am looking for a good cheap way to manage all of these systems for a central location. I need to set a security policy and make sure all the systems are healthy and have all their updates.
Any advice would be welcome. I'm not new to IT but I am new to IT management and this is the largest group of computers I have ever had to deal with.