I have an Acer Aspire One that is dual booting Windows 7 and Ubuntu 10.04. After not using the netbook for about a month, I turn it on to use the Windows partition. Windows decided that I need to use eRecovery to 'recover' my netbook even though nothing was wrong with it. That doesn't work (it kept asking me to recover my netbook and never let me go back to windows). Because I have Ubuntu installed, GRUB found a Windows Vista partition on the netbook as well (Its always been listed there since I installed Ubuntu) so I decided that maybe I could just with Windows Vista. Turns out that booting into Vista fixed my problem (and it was running Windows 7). After it installed some updates it rebooted (WITHOUT MY PERMISSION) and now it just runs in an infinite loop booting and then rebooting every 2 seconds.