local vault-failed 22.5 update

win7, 64bit ns2015    ran live update,  22.5 downloaded and installed(?).   rebooted and i'm in the reboot loop others are having.  ns2015 no longer works- nothing happens when click on desktop icon.   i know i will have to reinstall but will i lose my local vault? i had download new versions unchecked.  i shut down the computer as soon as i finished checking if ns was working. thanks for your help. this post from ubuntu 14.04 on a dual boot xp/ubuntu.