Resident Evil 7 Teaser: Beginning Hour has been updated with the following fixes and optimization.

Patch #1 Release Notes

• Game now works on CPUs without SSE4.1 functionality (e.g. AMD Phenom, Intel Core2 series)
  
• Optimized HBAO+ performance
  
• Fixed an issue that caused the screen size to change when switching from full screen to windowed mode.
  
• In-game purchase button now correctly links to the full game store page.