Sorry if this has been discussed before, I am new to the forum. I recently purchased pro 3 with windows 10. Everything ran fine until I installed avast upgrade which I paid for. The pro wouldn start it kept saying reset or repairing and eventually went into a loop. I went on line to get a code and it I was then able to reset. I loaded avast free and it ran perfect until an hour ago when I installed an update to 2016 Avast for free and it went back into the same probs as the paid for version, I am now at reseting it. Any suggestion on antivirus or what may be the problems or solutions. Thanks