You can enable or disable AHCI through registry.

[tweakboy]

I did this change and Im on AHCI OS

go to start button click it and type "regedit" without the quotes.

It will come up now...

1. Exit all Windows-based programs.
2. Click Start, type regedit in the Start Search box, and then press ENTER.
3. If you receive the User Account Control dialog box, click Continue.
4. Locate and then click the following registry subkey: HKEY_LOCAL_MACHINESystemCurrentControlSetServicesMsahci
5. In the right pane, right-click Start in the Name column, and then click Modify.
6. In the Value data box, type 0, and then click OK.
7. On the File menu, click Exit to close Registry Editor.

Heres the link
http://www.ithinkdiff.com/how-to-enable-ahci-in-windows-7-rc-after-installation/

 

[Phynaz]

Welcome to 2009 Tweakie. And every thread about enabling ACHI since then.

 

[Smoblikat]

The sky is also blue, and an orange is orange.

 

[hhhd1]

To enable AHCI you must first enable it in bios, editing the registry can be done to make windows work with AHCI.

If your BIOS is not set to AHCI then you are not running in AHCI mode, and the registry setting is useless.

The registry setting can not change the AHCI mode, only BIOS can.

 

[Herr Kutz]

The sky is also blue, and an orange is orange.

I don't know, on some laptops red is orange...

 

[Coup27]

Another totally useless thread from tweakboy.

 

[jhansman]

What are a registry?

 

[tweakboy]

To enable AHCI you must first enable it in bios, editing the registry can be done to make windows work with AHCI.

If your BIOS is not set to AHCI then you are not running in AHCI mode, and the registry setting is useless.

The registry setting can not change the AHCI mode, only BIOS can.

It says after you make the registry change to then go to BIOS and enable AHCI . and your set...

 

[tweakboy]

Another totally useless thread from tweakboy.

Can you please tell me why its useless ? Im giving information away that can help others who install OS while bios is on IDE.

This is for those people. Im sorry I know you are all gurus and PUT it to AHCI before OS install.

Im just saying there is a way to change to AHCI for those users who installed OS with IDE and you dont have to format.

Did you know about that registry key ?

 

[Despoiler]

Can you please tell me why its useless ? Im giving information away that can help others who install OS while bios is on IDE.

This is for those people. Im sorry I know you are all gurus and PUT it to AHCI before OS install.

Im just saying there is a way to change to AHCI for those users who installed OS with IDE and you dont have to format.

Did you know about that registry key ?

I knew about the registry key. Why? This information has been around for YEARS. You act like SSDs are brand new tech and you are the first one that bought one.

 

[tweakboy]

I knew about the registry key. Why? This information has been around for YEARS. You act like SSDs are brand new tech and you are the first one that bought one.

No silly came out in 2008. Im passing along vital information for some,, You knew the registry trick but did the hundreds who keep their mouth shut and dont open it like Coup25. As long as your reading my threads thats all I want, that gives me joy and I love it when people get angry.

 

[tweakboy]

I knew about the registry key. Why? This information has been around for YEARS. You act like SSDs are brand new tech and you are the first one that bought one.

Useless Post

 

[Denithor]

No silly came out in 2008. Im passing along vital information for some,, You knew the registry trick but did the hundreds who keep their mouth shut and dont open it like Coup25. As long as your reading my threads thats all I want, that gives me joy and I love it when people get angry.

Tweak, keep in mind you're posting on a techie board. The VAST majority of people here are going to already know this trick, because most of us have been through this experience at some point over the last 5 years or so (when upgrading from a spinner to SSD).

Personally I opted to do a fresh install with my first SSD instead of using this trick. But that was mainly because I also made the jump to 7 from XP at the same time.

 

[WT]

Oddly enough, this failed on both of the PCs that I tried it on, and I am sure I did it right. My main rig is running a Gigabyte Z68 iSSD board, and Gigabyte even offers a utility to set this for you, and mine STILL spit out a BSOD after a reboot.
I'm guessing it has something to do with using an mSATA SSD as a cache drive on the Z68 board along with my RAID'ed WD Blacks (BIOS is of course set to RAID for that).

The second PC is a more traditional AM3 board with an SSD as a boot drive, and I made the registry change and set the BIOS to AHCI but it too spit out a BSOD after a reboot - 0x0000007B which is a storage controller driver issue.

 

[Auric]

Meh, I remember transferring an old XP installation to a new system and switching both IDE to AHCI and HAL from Standard to ACPI MP. But me and Kim Jong-Il were 1337 like dat.

 

[Zorander]

Congrats on the discovery. Better late than never.

 

[Coup27]

No silly came out in 2008. Im passing along vital information for some,, You knew the registry trick but did the hundreds who keep their mouth shut and dont open it like Coup25. As long as your reading my threads thats all I want, that gives me joy and I love it when people get angry.

When I open my mouth, sense comes out. When you open it, nonsense comes out.

Changing from IDE to AHCI via registry gets mentioned in at least a few threads per month so it certainly does not need tweakboy to make a new thread to inform people. Are you going to continually bump this so people see it?

"I love it when people get angry" - Personally I think you're a troll, but it's a shame the mods don't agree with me.

I'd advise this thread gets locked as well for everybody's protection.

 

[Yellowbeard]

FWIW, Microsoft also makes a tool to do this automagically, no manual registry editing required.

 

[tweakboy]

Good info. registry is easier for me tho.

 

[mv2devnull]

Sure it is, for you. However, the "hundreds" would have preferred you to simply point to this MS article, so they would learn both the background and recommended solutions of the issue directly from the horse's mouth.

 

[GlacierFreeze]

Personally I think you're a troll, but it's a shame the mods don't agree with me.

I've thought the same for a while. It's hard to imagine someone, who comes on tech sites so often, to be so lost/"out there" on most topics posted on and it's not being purposefully done. I could understand if the guy had some disorder, which caused him to have the mind of an 8 year old and also short term memory loss, but no. I'm sticking with troll.

Same thing with that "Moonbeam" character way back when I used to occasionally browse P&N. Says a bunch of nonsense with fancy-fied words thrown in there to sound smart and tried wayyyyy too hard to sound all philosophical but, at the same time, nothing of any substance even gets said. Kinda like a Seinfield episode, bunch of stuff happens but "it's a show about nothing". Worse part of it was some people actually ate it up lol.