[Bug] MS DOS Prompt keeps "S>" with the upper right in Windows ME in v86

When I keeps in the Windows ME, Your see like this:

<img width="1024" height="771" alt="Image" src="https://github.com/user-attachments/assets/2d26cb9c-855f-4744-a13c-d7d994b9c505" />

<img width="1027" height="767" alt="Image" src="https://github.com/user-attachments/assets/2bdd29bf-df11-4790-b9a2-1e691474cafa" />