Hello SP Guru, After sfc scan, MS tech figured out hardware problem, give me a new SP4 replacement. It still have the same problem on sfc scan with the new one. "found corrupt files, unable to fix them." Is it something to worry about? Does it happen to anyone? Also, Does anyone use Kaspersky internet security? It kept on shutting down half way through. A least, I narrow it down to having conflict with chrome browser and extension (Lastpass, Adblock, Speaklt). I'm sure how to solve this, give up/not use one of them? Looking forward to hearing from you guys... K. K.