Set SonicGenerations.exe to "High Performance" in GPU Control Panel. Run ConfigurationTool.exe as Administrator and click Save. Resolution Mismatch

Go to your Steam Library, right-click , and select Properties . Navigate to Installed Files > Browse .

The most frequent cause of this error is the game trying to run on your integrated Intel or AMD processor graphics instead of your powerful dedicated graphics card. Right-click your desktop and open the NVIDIA Control Panel . Go to Manage 3D Settings > Program Settings .

Find , right-click it, and select Run as Administrator .

Set the preferred graphics processor to . Click Apply . For AMD Users: Open AMD Software: Adrenalin Edition . Navigate to Gaming > Games .

Match the game resolution to your native desktop resolution.

(Optional) Check and select Windows 7 . Repeat these steps for ConfigurationTool.exe . 5. Disable Integrated Graphics (Last Resort)