by the way when purchasing there are no guidelines given that one option is for home use and another option is for business use....whatever that means. I am a novice...I do not understand the difference between home use and business use. Furthermore, the error code does not define anything....it does not tell one what the issue is. I purchased the program to use it and I expect some type of tech support to explain things...simply replying by asking if this is a business computer does not give me any understanding of the issues. If there is a difference then when selling the product you should say so on the purchase screen. I am attaching a screenshot of the purchase screen and there is no mention of business vs home use.