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I have preinstalled Vista. It worked well until I installed Ubuntu 10. Now I can boot Ubuntu normally but not the Vista. When I boot Vista, it shows message "Winfows is loading ...." and then big red ERROR appears. There is message "can't find RECOVERY.DAT.... ". Vista can't boot. Also, Ubuntu reads other partitions but not the VistaOS partition. Laptop is ASUS M50Vn.

Here is picture :

http://www4.slikomat.com/10/0313/j9x-SNC000.jpg

I believe (not having Vista) that you should install Linux first then (other OS). In addition, did you use a BootLoader (like e.g. Grub)? Did you install support for NTFS filesystem? You haven't specified anything more tha "Ubuntu 10" which really says not much except "Flavor+Version". My impression (and from basic experience/knowledge) is that you can obtain/build any options you want into any given "Flavor+Version". Not?

Err, in addition you "stomped" on the MBR for Vista with the Ubuntu one...

Edited March 13, 201115 yr by submix8c

So what should I do? I'm not so familiar with terms MBR and BootLoader. I think is better to install other OS before Linux....

Read a little of this for a better idea of MBR.

An example of BootLoader (for Linux/Ubuntu/etc) is Grub. Search for it. In addition, you could have installed Grub4Dos (search that too) before install Ubuntu.

You can't just install for dual-boot (any combination of OS) until you know how it works and what tools may be needed...

I can't tell you how to "recover" your Vista installation. Maybe someone else can (jaclaz for example). Search the forum/web (button above to right of "Search").

edit - maybe this will help (searched for it right here too!).

(p.s. Vista has its own bootloader too)

edit - Here is how to get your Vista install back up. Then you can proceed to "fix" your setup to dualboot.

Edited March 13, 201115 yr by submix8c