In the settings:% instead of letters?

Hello today I reset my laptop because it was spinning around. When I started my laptop today I noticed that there were no letters in the settings, but other characters such as percent. In addition, I couldn't open the advanced display settings. I urgently need help

Very strange. It is a generic advice, but could help in this case: Press Win + R and start cmd. Then type in "sfc / scannow" (without quotation marks) and press Enter. This checks system files and repairs them if necessary. It doesn't do any harm, we'll see if it helps.