Some games require to have admin rights to be executed correctly, to do that:

• Right-click on the game exe
• Click on Run as administrator

To avoid some problem regarding user rights of some folders (like Program Files / Documents…), the best thing to do is to install games in a specific folder like C:\Eroge

Since Windows Vista or 7, you have the possibility to run a program with a configuration adapted for older Windows, here is how to enable this mode:

• Right-click on the game exe
• Click on Properties
• Select the Compatibility tab
• Check Run this program in compatibility mode
• Select the version of Windows you want to try
• Apply

If you have a 4K monitor or with a high resolution, this can cause issue with some games. You have an option to let the game configure the dpi setting itself.

To do so:

• Right-click on the game exe
• Click on Properties
• Select the Compatibility tab
• Check Change high DPI settings
• Check the box Override High DPI scaling behavior
• Apply