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I have found my experience of Ubuntu too demanding, and want to re-install Windows Vista. However, the installation disc says I need NTFS. When I then click the reformat option, I get an Error Message :0x80004005. I have tried this Forum, but I don't understand Ubuntu terminology - I can't find my way round this OS. I've looked everywhere for DISC UTILITY to see if I can reformat the HDD from within Ubuntu, but I can't find it - it's not an option. Can anyone help in terms I can understand??? I have a Windows installation disc, but it won't work for the reason given above.