Squalyian

Greetings, Usually i'm using the application on Laptop, i'm saving all my files on external HDD , After i tried the application on Two monitors PC and go back to Laptop the application doesn't launch at all . i tried to do trouble shooting and run as administrator on my laptop without any benefits. When i go back tried the application on two monitors PC it runs perfectly ! only on my laptop won't open i searched over the internet regarding solutions , installed Latest version for DirectX and NVEDIA but still the issue is exists . I Fear if i un-install the application all my Roms will be delete, i download almost 1 TB and half for the roms so i don't want to lose it. Anybody , please help me ASAP.