Upgraded from win 7 in Jan and all was weull until Friday 17th June when I lost all Internet connectivity hard wired and wireless. Network adapters are hidden and all show error 45 as does com, lpt ports Bluetooth and sw devices. Tried local drivers update but none found. Reset fails with no changes and no backups are available. All else seems to work OK. The laptop is a dell xps 15 inch i5 about 4years old. Anyone got any ideas or is it clean install. Many thanks for reading this.