Vista partition won't boot after XP partition deletion?

I've been dual booting Windows XP Media Center and Vista Business, but I recently decided to get rid of XP to free some space up on my hard drive. Since I could not delete the XP partition from within vista since it was an active partition, I decided to boot from my Vista CD and use the hard drive management tool that comes with windows installation. Unfortunately when I deleted the XP partition, the Vista partition stopped being bootable. My computer won't detect that I have any OS.

By using the browse for drivers option from the Vista disc I can browse my Vista partition, and it seems unharmed, but it simply won't boot. Please, any help is greatly appreciated!

When trying to use the repair function on the Vista disk, no operating system is detected, and the startup repair seems to have no effect.

This might sound like a hassle and if you dont really have anything important on your pc, just reinstall Vista. Noone ever complains about how great a freshly installed OS feels on thier computer. Gamers do it very often. If you only have the Vista upgrade, there is a trick so that you can do a fresh install. You can also search PC Magazine and PC World for this. I have dont it myself and it does work.

Boot from the Vista disk and do a fresh install of the whole OS.

When Vista asks you to put your serial #, leave it blank; continue the whoel installation.

Now when you new copy fo Vista is working, reinsert you Vista disk while vista is on.

You will be prompted to do an upgrade, upgrade you existing copy, but when asked for your serial#, enter it this time.

This is also posted on the Microsoft Website.

But only do this if you do not have anything important on you system. hope I can help.

Insert vista DVD and go on and when it asks to install vista click on repair not install it will take care of it that happened to me.