Board Thread:Roblox help and discussion/@comment-35523179-20180818201552/@comment-36035664-20180819174744

Try resetting Internet Explorer. Yes, you probably don't use it since everyone calls it trash online, but it can still work while it helps for Roblox Studio errors. It should also help Roblox Player, too.

1. Open Internet Explorer. Either search it in Cortana or open it from your desktop.

2. Select the gear-icon in the top-right corner and select Internet options.

3. Click on Advanced at the top in the Internet Options tab.

4. Select Reset and you should probably check Delete personal settings on there.

5. Click on Reset once you finish, and now it should reset Internet Explorer. Now just go on any browser you use, and open Roblox Player again and see if it works.