Dell is a thirf

I want to ask all friends and members why should I renew my dell, my Dell Laptop 15 5568 model which is PRO. I've been bothered for six months since my office product key ended on its own and I'm not even the owner of this dell laptop, all the information that is provided before ire on our system and how all the information is automatically lost. It came to a standlong time when ninety days of warranty were left, all files were corrupted. Microsoft is also ten steps ahead of Dell. A straw in the burglar's compartment.