This is really frustrating. 10240 build was just fine, but since I updated to 10586 i'm in a living hell. - There are a sfc/scannow erros that sfc couldnt repair - Laggy Boot - Apps crash at start So I decided to wipe my HD, create a new volume and performed a Clean Install - Sfc/Scannow persits - Apps work fine - Search says i'm not connected with the internet, but I AM. I read about the In Place Upgrade, i did it - Sfc no errors - Apps Crash - Dism show no corruption - Search says i'm not connected with the internet, but I AM. 3 days and I just cant get it to work. Please can someone help me. I'm running out of ideas. And I don't think it's hardware related. SOLVED: Downgrade to 10240 and then did the upgrade through Windows Update. Ran Defraggler and fixed the hard disk fragmentation.