I've tried about a dozen times. It will download but won't install. The error message keeps changing. I've used the DISM tool and most of the time it crashes and claims it can't find a source. The few times its worked, it hasn't helped. I even chatted with the Microsoft answer desk, but they want to charge for their help. Seemed like they really didn't know either. Is there anyway anymore to do a windows repair that just refreshes the system files without destroying your installed software? They give me a long list of what I will need to reinstall when I do a refresh. My computer started life with Win 7 and I've upgraded it to the latest versions until now.