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Windows 7: AHCI : Enable in Windows 7 / Vista

23 Nov 2011   #390

Windows 7 Pro 64

Quote   Quote: Originally Posted by Ashendon View Post
The only way I can get windows 7 to boot now is to physically select drive at start up via boot menu f8 and select the drive which is on ahci-2(when ahci is enabled it is on all sata ports on motherboard) and i have 6 sata ports, 4 which can be used normally and to use the other 2 ahci has to be enabled and i have 4 hard drives and 2 dvd drives that are sata so I have to have all ports enabled. If ahci isnt enabled, then windows 7 boots up fine.
I am asking if there is a way that I can get windows 7 to boot to the correct drive without having to physically select it everytime-I have tried easybcd and that didnt work.
Quote   Quote: Originally Posted by Brink View Post
Hello Ashendon, and welcome to Seven Forums.

What did you have it set to before AHCI?
it was set to ide since windows 7 would not install to it unless it was set to ide in bios, have installed drivers, restarted computer, recognized the sata ports, installed the drivers for them, rebooted and then it will not load windows 7, unless i physically point it to the drive, which is on the boot list as ahci-2
have tried easybcd to make sure the hard drive is selected and it is
why will it boot when i choose it to boot from with the f8 option from startup, but not not from windows automatic booting?

My System SpecsSystem Spec
23 Nov 2011   #391

64-bit Windows 10 Pro


Double check to see if you may have made a mistake or missed a step in the tutorial.

I've always found that this works best to set BIOS to AHCI, then install Windows 7 to the HDD though.
My System SpecsSystem Spec
23 Nov 2011   #392

Windows 7 Pro 64

Windows will NOT install unless the bios has the sata drives as ide, no problem installing windows that way, but as soon as bios has sata drives as achi, windows 7 will not install to any drive whatsoever it says unable to install to so and so drive, have had one drive connected to sata port 1-6 and each time the same message came to reiterate, Windows will not install if in the bios anything but ide is chosen to have the ports as. Windows wont even recognize any drivers that you can load before installing the system to, have tried the proper drivers(load drivers option before installing windows 7) and the same thing comes up. It might be the motherboard that I am using(m3n72-d asus) which is windows 7 compatible, but I have not read much more about the trouble I am having. Not many use 6 sata devices I guess.

Please excuse me if I seem a bit terse. I have been working on this problem for about a week now trying different things and no I dont think that I have tried everything(obviously) but I have tried many things many ways to no avail.
Any suggestions will be welcomed since I am at a loss as to why. Until then will have to hit f8 at bootup to get to the load manager to load the correct drive with windows on it
My System SpecsSystem Spec
23 Nov 2011   #393

64-bit Windows 10 Pro

No problem mate. I understand that it's frustrating when something should work and doesn't for some unknown reason.

Strange, I'm not sure why it would not recognize the SATA HDD at boot when BIOS is set to AHCI as well.

As a test if you like, run the clean command on one of the SATA HDDs to wipe it out clean, then only have it connected to your first SATA port on the motherboard without any other HDD connected and see if you are able to install Windows 7 on it using your Windows 7 installation DVD/USB. Be sure to backup anything on the HDD that you do not want to lose before running the clean command on it though.
My System SpecsSystem Spec

23 Nov 2011   #394

Windows 7 Pro 64

Thankyou for the suggestion, but as the saying goes-been there done that
My System SpecsSystem Spec
23 Nov 2011   #395

Ultimate x64

Had the same issue but once I did a clean install and diskpart then force my Asus F1 to boot off that drive, windows boot up properly and has been since then. Again, did have to force/chose the ssd drive to boot off from. Now I did not have any problems installing W7 in ahci mode, just had to install the drives afterwards but it did install, that is weird that it won't on yours.
My System SpecsSystem Spec
23 Nov 2011   #396

Windows 7 Pro 64

I have tried to do a low level format on the drive, connecting it as the only drive to sata port 1 with ahci enabled and windows 7 would not install to the hard disk, even though it was listed there as a drive, it just says windows cannot be installed to this hard drive. The only way I can install windows 7 is to put it back to ide mode in bios instead of ahci and install windows that way. Even with trying to install windows and using the correct drivers for my motherboard it will not install. Even now after installing windows 7 and putting the correct drivers in and enabling ahci in the bios(it already was after installing drivers and rebooting and so on)the drives were recognized fine(i changed the bios from ide to ahci) and it booted up fine and installed the necessary ports and all. As soon as I turn off the computer and on again, I have to do the f8 thing to boot to the right drive. As stated before even using easybcd which will go into the boot manager and tell you what drive and so on, everything is fine by that program. I am at a loss as to why windows wont boot to the correct drive-i have tried fixing it from the windows disc and I havent a clue what is going on.
My System SpecsSystem Spec
23 Nov 2011   #397

Ultimate x64

Then I would get in touch with ASUS since mine is also Asus and works but again; did go into Bios and force to boot off the SSD drive which has W7 on it but that was only on the first time, once force, Asus save the settings and is now booting W7. Sounds to me like there's something in the Bios not set up correctly since W7 does not determine which drive to boot off, BIOS does.
My System SpecsSystem Spec
24 Nov 2011   #398

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64

Please fill out your 'System Specs', this will help us to understand your hardware.

What is your boot order in BIOS?
Can you give us the order that is listed?

Make sure the correct disk is listed as the first hard drive to boot.

Anything in your CD/DVD drive or any USB HDDs or memory sticks connected?

Can you give us a snip of the Disk Mangament window, showing all the drives connected?
My System SpecsSystem Spec
15 Dec 2011   #399

Windows 10 64bit

i have a question what exactly does enableing this do? never heard of it but im wondering what it does and how does it benfit the system?
My System SpecsSystem Spec

 AHCI : Enable in Windows 7 / Vista

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