Upgrade to Vista Ultimate - iastor.sys missing or corrupt

[Guest]

I just tried to do an upgrade from Home Premium to Ultimate using the Anytime
Upgrade disk. After the first reboot, the boot manager fails with the error
Windows failed to load a critical system driver
File is \$Windows.~BT\Windows\system32\drivers\iastore.sys

Says to put the install disk in and Repair your computer. My laptop is an
Asus and only came with a recovery CD which dumps and image back on my hard
drive.

Can anybody help me here? Is this driver missing from the existing install
or is it something missing from the upgrade install (judging by the path to
the file above?).

Kevin

 

[Guest]

iastore.sys sounds to be Intels SATA disk driver no?
Download that driver from Intels homepage, when the setup asks Press F6 to
add driver, to so and put in the driver, seems that Vista don't have that
driver default, but it was probably added by the manufacture that sold you
the first version of Vista Home edition on your computer.

 

[Guest]

Never did resolve my problem, I did enough poking around though to guess that
during the upgrade, it appears that a 64 bit driver was attempting to be
installed. Talked with MS tech support and they have had quite a few issues
doing the anytime upgrade. Ended up doing a clean install (as opposed to an
upgrade). There was also an issue with the license key from home upgrading to
ultimate. They ended up having to give me a new key. So at the end of the I
would avoid doing an upgrade and just go clean install. You will have to call
tech support to get a new key. Somebody along the way will tell you the home
key works for the upgrade but it doesn't. You have to get a new key. Took me
well over 16 hours to solve this with all of the various installation
combinations I tried.

K