# Install Windows on a Computer with ICH9R RAID

This solves the problem where the Windows installation will say “Cannot find IAstor.sys” during the file copy process (but sees the hard drive partitions initially).

If you already made a floppy with drivers using utility:

1\. Create folder $<span class="caps">OEM</span>$ on a floppy with drivers.

2\. Create folder <span class="caps">TEXTMODE</span> in folder $<span class="caps">OEM</span>$, so structure will look like $<span class="caps">OEM</span>$\\<span class="caps">TEXTMODE</span>

3\. Copy files (not move, but copy!)

- iaahci.cat
- iaahci.inf
- iastor.cat
- iastor.inf
- iastor.sys
- txtsetup.oem

to the folder <span class="caps">TEXTMODE</span>.

Now Windows Setup will find all files fine.