Hey I have a simple question that I haven't found the answer to. People here recommend upgrading to 10, then doing a fresh install. Instead of that, are there any negatives to upgrading, then running DISM and sfc/scannow, then deleting Windows.old and "previous windows installations" in disk cleanup? Also I have found the answer to the following question, but just to be sure, 8.1 Pro -> Win 10 Pro, right? Ta!