Everything worked fine on my computer until few days ago. When I tried to play a game it just stopped working. I can not even start it. I thought that something happened to that game and tried another. Unfortunately, same thing has happened to all games installed on my computer. I just receive some error and can not even start it. Do you know what has happened with my games?
This is, definitely, very strange problem which can not happen without direct cause. What has happened with other programs you have? Are they working? If your games were installed in one folder it is possible that you have deleted (or someone else that is using same computer) that folder accidentally. Check if you can locate game files manually.