ummm...... uninstalled windows?

How did you install ubuntu? On a own partion or did you choose to use the whole harddisk?
If you choose a own partition there should be a windows-entry in the grub-loader... If you choose the whole harddisk you are out of luck and you have "shredded" your windows installation...
Usually you should free up some harddisk-space before installing and tell ubuntu to use the largset unused space on the harddisk. Doing so you will end up with two running operation systems, selectable by the grub-loader on startup...

Concerning the logon problem under unbuntu: you have specified a username and a password during installation. I hope you remember them... ;)

€: just saw you addition... yes you "uninstalled" windows and ubuntu is now the only OS on your harddrive

Message Edited by OmaWetterwachs on 08-10-2007 10:23 PM

Or do what I did and use Wubi to install Ubuntu :)

Message Edited by cvitullo on 08-10-2007 05:19 PM

***Before starting, be sure you have backups of your data***

To get Windows back, just pop in the Windows CD as you start up your computer and you'll be on the blue screen of rebirth. Delete all the partitions on your machine. So that you can dual-boot, you would want to allocate a smaller portion of the hard drive to Windows. Here's my scheme:

• 60 GB or less: Split the drive into thirds
• 80 GB or more: 20 GB for Windows, 20 GB for Linux, and everything else for the third partition*.

*This third partition is what I call "common storage." It is a NTFS partition that Windows and Linux (via ntfs-3g) can both access.

During the Windows installation, you would want to allocate only the first partition. After installing Windows, install Linux. During the installation process, you make the other two partitions (for Linux and "common storage").

Hope this helps.

Message Edited by dasunst3r on 08-10-2007 09:20 PM

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@cvitullo wrote:

and i remember what i put down, but it's not working.

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When you boot Ubuntu, the grub menu should include a "recovery mode" option. This also known as single-user mode and won't require a password under normal circumstances. Once you are in, you can use the passwd command to reset your user account password.