Running Windows in AHCI/RAID1 mode

If by any reason you can't supply hdd controller drivers to windows install, but you want to use AHCI or RAID1(mirrored) mode you can do the following steps:
1. Set HDD controller in IDE mode
2. Install windows without need of HDD controller drivers
3. When windows installation is complete while in IDE mode, install HDD controller drivers required to run in AHCI/RAID mode. (get latets drivers from manifacturer web site).
4. Reboot, and wait until you get message that your new hardware is installed and you need to reboot. This can take about 5-10 minutes
5. Reboot and wait 5-10 minutes after windows is loaded to be sure there are not other driver install messages.
6. Reboot, go in bios and set AHCI or RAID1(mirrored) mode

This will not work for RAID0 or other RAID configuration that increase speed!