用于将Windows XP +标准化应用程序推广到小型计算机实验室的简单免费或廉价工具？

I manage a high-school computer lab with ~40 machines, have old PCs with varying hardware. I need to roll out Windows XP + a standard set of apps and settings for new machines, and to re-format older machines. I manage a high-school computer lab with ~40 ma