I have run the Microsoft Vista upgrade advisor on my laptop. I have been advised that there is not enough space on my C drive (13.06Gb), but I can install on my D drive (36.42Gb). C and D are partitions on my internal HDD that were present when I bought the laptop. If I were to install on D, what would happen to my copy of XP Pro on C? Would this constitute a dual boot arrangement? Would I be able to revert to XP Pro? I would, of course do a full backup using True Image 10. Would this backup effectively reinstall the old XP Pro after I have installed Vista on D? The version of Vista I have is Vista Business "Express Upgrade". Are there any other things I should take into consideration?
Thank you both for your advice. Two things come to mind. Firstly the laptop HDD is FAT32 and the info in Anskybers link says it should be NTFS. Is it possible to change the C and D drives to NTFS without losing data? Secondly, I have a spare external 80Gb NTFS drive I could plug into the USB of my laptop. Could I install Vista to this, the G drive? G drive is presently set to compress data, should I untick this? If I were to do a full backup to G drive, would the backup be damaged by subsequently installing Vista to the G drive? Would I be better off partitioning G before I start, so that Vista and Backup are on separate partitions?
I think you will have to change C & D to NTFS. I'm not sure if you can have two file systems on the same drive. However it won't matter if you do change the whole drive as it won't affect XP on C.(Other than to change it to NTFS of course!)