I recently bought a second-hand laptop and did a full factory reset on it. Upon completing the set-up, the fans started whirring at full speed and the cpu usage is constantly at 100% (if I set a maximum cpu usage it will stay at the maximum). Does anyone know how I can fix this? I have tried a few things, disabling Windows Search, enabling my firewall on everything for private networks, and using the Dism command on cmd but no luck. It runs fine in Safe Mode. Thanks so much if you can help.