given up

I hope I am in the correct area. I am not a computer person, I read the Dummy books, read the material on the Web about things I need to know about. At this point I am at my wits end. About 3 months ago I crashed my husbands tower by doing something stupid, and the stupid thing was trying to install the Windows XP Home Edition on his tower when it was already on mine, so now he has another tower this is the one I am at my wits end with. See, he has Windows XP Media Center Edition installed on that, another program that is also installed on his tower is a program called nLite. This tower was owned by someone else and was given to my husband, so everything that is installed on the tower belongs to that person. Anyways, I can not seem to download anything to where it comes up, can not get into any Windows programs to download or update. This nLite is giving me headaches, and I will admit I do not know how to use this program. Can I delete this program at all? Can I get a Windows XP Home or Professional Edition to start over again or would I make this worse? My husband really doesn't want the Windows XP Media Center Edition and does not want the program nLite at all!! Is the Media Center Editon something like the Professional version? If someone can help me with any of this we would really appreciate it very much. Thank you so very much given up

I was given this as a referral so I hope someone can help me. First off, I am not computer knowledgeable but am learning very quickly I think. Anyways, I was using my husbands computer about 3 months ago, I had put Windows XP Home Edition on his after I had put it on mine; yes, I know that was stupid!! That had crashed my husbands tower, so he received another tower and it has Windows XP Media Center Edition and a program called nLite installed on it; question one: is the Media Center Edition something like the Professional? Second question: I have no clue what nLite is? After reading about it I am now beginning to see what it is and I am having a terrible time with it. Is there anyway I can delete nLite from his computer? Can I install Windows XP Home Edition over this program? See, this program will not let me do anything, someone else had this tower before us and put it in, so if I want to download anything it tells me to go to the eventviewer or the administrator. If Media Center Editon is not the same as Professional can I install that over this program nLite? I was reading over some of the responses to nLite usage and some of the people who are using this like it, at this time I must say I don't, maybe because I really don't know how to use it. If anyone can help me delete this program I really would appreciate it and my husband would also. Thank you so much given up