the ACHI settings in BIOS is for all the drives or none of the drives.
The setting is for the controller and affects all the drives connected to that controller. If you only have once SATA controller then it affects all drives. If you have a motherboard with multiple (e.g. 8 drives via the Intel chips, 4 more via an extra SATA controller then it affects the subset connected to the controller which settinfs you changed.
How do I switch Ubuntu from IDE to ACHI?
Look up, shout Khazam!. You should be all done.
(As in: You do not have do to anything for most Linux or BSD installations. Normal SATA (AHCI) drivers should already exist in your kernel.)
For windows it is more complex: Either change the settings and reinstall windows, or change some of windows services. I have done that on windows 7 (as decribed here but I have not yet tried this with win10).
For completeness sake, your settings seem to be:
- AHCI. This is the normal mode for SATA
- IDE/legacy: Backward compatability mode. Needed for things like windows 2000 or older. (or windows XP unless you load the relevant AHCI driver during installation).
- RAID; This is software RAID and will need drivers. Both in windows and in Linux (drivers might already be present in Linux but you may have to adjust /etc/fstab to mount the new devices).
I have drive 1=Ubuntu, drive 2=Windows, drive 3 & 4=Storage.
There is no need to put windows and Ubuntu on their own drives. Putting them on different partitions in the same drive would works just as well. It does not harm though.
When I try to boot to windows I find the drive frozen and I must jump through
several hoops to unfreeze it.
Did you enable encryption or a password for this drive? Because with the current information in your post we cannot help you.
If I didn't have a scanner that doesn't work with Ubuntu,
I'd ditch windows forever.
If you only need windows for a scanner then I would look into WINE or a VM.
