Sounds like Windows 10 is corrupt or possibly a virus. Can you boot into safe mode and do you get a normal screen there? If so try running an anti virus scan in safe mode. If that looks good, you can try a repair.
-Forum Member since 2016 -I do not work for Dell -A user helping other users -If you like an answer please click on thumbs up -If a reply is a solution to your problem please click on Accept as Solution Gaming on a home built ASUS Z170K i5 6600 Real work on an Inspiron 15 5575