Windows Vista

I'm so annoyed, I'm writing a blog post!
Here's the low down:
1) Windows Vista working fine.
2) Asks for updates to be installed - decide to reboot it to check they install fine (I had installed Adobe Professional 30 day trial and a few other things so I thought it wise to reboot to be on safe side)
3) Vista reboots 3 times! So much for restart manager. You get "Configuring Updates" then "Shutting Down..." yawn. What was wrong with the old fashioned ways of Windows XP and the single reboot?
4) Boots up fine. One of the updates failed. Never mind
5) Shut it down and it tries to install the update again. OK
6) Next morning, Mum uses PC - no problem
7) When it shutdown it tried to install the update again. OK
8) Younger brother switches PC on
9) No boot, no safe mode, just "Following file is missing or corrupt: \Windows\System32\winload.exe"
10) We have only a Vista upgrade DVD, which is not bootable! Gah!
11) Install Linux!
12) Write a blog post
13) Copy \Windows\System32\Boot\winload.exe to \Windows\System32\winload.exe
14) Let the world at large know if it worked...

The crazy thing is this could happen to anyone. Most users would be stumped, and even if they had the Windows DVD would probably end up losing all their work.

Good night