In order to fix the issue, press Alt + Ctrl + Delete key combination, open Task Manager and close all unnecessary applications that may use your computer resources. After that, try again. If it doesn't work, remove Acer eRecovery Management software from your computer (Control Panel > Uninstall a program), navigate to Acer Drivers and Manuals web page, identify your computer model, select your operating system and download and install the latest version of the software from the Applications tab.