My computer suddenly restart itself the other day and when it came back up so much as clicking on the icon for Google Chrome freezes everything. I uninstalled Chrome and tried reinstalling is but as soon as the download finished, the computer froze again. I tried installing an earlier version (about a week prior) and it froze differently but still froze. I am also getting notification that the battery needs to be replaced. At the moment I am running it sans battery and using firefox and everything seems to be fine. I have a HP dv4t running Windows 7.