UE4 Project Browser Hangs


UE4 launches to Project Browser Screen and remains blank. When I look at the task manager, UE4 is unresponsive. Have waited 5 mins but UE4 remains unresponsive. Have end the task multiple times and relaunched UE4, but it continues to hang at the Project Browser Screen which is blank. Have also uninstalled and reinstalled UE4, but UE4 continues to hang at the blank Project Browser Screen when launching. Am at my wits end can anyone help?