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. Thanks so much if you can help.