.Net packages or .net service packs will not install

First step, restart the computer and try again. If that does not work the machine might need a .Net cleanup tool. This tool can be found on Microsoft's website. If you do not want to go there for the download you can get it from here or here. After the tool is done, restart. Re-run the tool. Restart again. Start all of your windows updates. This should fix the problem.