When I was trying to divide my SD card into two partitions yesterday, I accidentally meddled with the partitions on my hard drive. I have got one main partition with practically all my data and Windows 7 on it and a smaller partition with ubuntu 10.04 on it. While the changes I had made were being applied, it froze and I had to cancel the Partition Wizard. Now I have two problems: 1. The partition on the SD card that I had originally declared als Primary in Ext3 format came out as Logical somehow (smaller problem) 2. I had in fact (and in my idiocy, yeah I know I'm stoopid) told the Partition wizard to wipe my linux partition. The computer still worked fine on Windows 7, but when I tried to start it up again today, it only showed me an error directly under the system monitor screen, without having entered the GRUB Menu as it usually did: error: unknown file system grub rescue>: _ I can input some unix commands as it seems, but I don't know anything at all about unix. Can you please help me fix this? I am no Linux or unix expert, I don't know anything at all about grub, I just want to start Windows from the untouched partition on my HDD. Please note: some forum entries I found elsewhere told me to type in ls (which apparently shows the partitions available) and then try ls + the name of each partition. ls gave me the list (hd0) (hd0,msdos5) (hd0,msdos1) (fd0). I tried ls (hd0)/, ls (hd0,msdos5)/ etc. For the other forum users, this had worked and one of the partions had showed their data, but for me, all the hd0 entries showed error: unknown file system again and fd0 showed error: fd0 read error. When I went into the bios before the system monitor started, it told me something about it not having found a Bios file (WTF?) and only gave me the options to restart the system or cancel the bios.