This is - at £220 - the cheapest Intel Core i3 laptop deal posted in 2017.
I've got a couple of these similar spec & they are very zippy - CPU Benchmark 3754 - & come with a rugged aluminium case.
Uses the HP Cashback scheme - you get £200 cashback on this machine but must trade in a qualifying item. You can use the £15 Which? discount with a £1 trial. Go through TCB for 2.3% off.
15.6" - 1366 x 768 Screen
Intel Core i3 6100U - 2.3 GHz Processor
Windows 10 Professional with downgrade rights to Windows 7 Pro
DVD-RW Optical Drive
Please see T&Cs https://hp.tradeuptohp.com/gb/en/pages/tradein/terms
esp For your Trade-in to qualify for the promotion it must be a working, complete and undamaged, (reasonable wear and tear accepted) Laptop (minimum 10” screen size), Tablet (minimum 9” screen size) or Desktop. Your Trade-in must be no more than 7 years old and complete with all accessories including working battery and power supply where applicable.