I'm not quite sure of this and how did a non-touch screen turn into a touchscreen computer. Maybe the issue here is the touchscreen feature of your computer and it is not working? If there were changes on the settings or a missing driver, we can perform a system restore to restore back to an earlier point in time. You are using a non-U.S. model and I'm not quite sure of the exact settings. You may try to follow the steps here (steps may be quite different but the logic is the same): https://support.microsoft.com/en-ph/help/17127/windows-back-up-restore.