Windows 10: Widespread AHCI issues in Samsung Magician since Win10 1-year update

Still working OK for me. I have an EVO 850. I am not using the Samsung Magician System Tweaks.
Here is the screenshot of mine

 

Not using Magican but I wonder if the difference is that newer platforms have a Full UEFI Bios , whereas older systems like my X58 and Z77 have an EFI Capable Bios , not quite the same thing AFAIK.



KB

 

No, it's a full EFI bios. Complete with CSM and GUI support. Those "EFI Capable" bios's use text interfaces because they're EFI extensions to an old bios.

 

I fitted a 1 TB Samsung 850 EVO SSD at the weekend and so far I have had no issues with it. Samsung Magician v4.9.7 seems to report everything is correct, including AHCI. ASUS Z87-Deluxe motherboard here (v2103) with UEFI enabled and Secure Boot on. Using Windows 10 Pro v1607 Build 14393.82.

 

All OK for me - Dell laptop with UEFI & secure boot.

 

I have a brand new Lenovo ThinkPad Yoga 260 in which I've installed the Samsung Evo 850. I'm also experiencing the exact same problem trying to use the Anniversary Update. With Secure Boot enabled, Samsung Magician thinks that it is not in AHCI mode. With Secure Boot disabled, it sees ACHI mode just fine. However, you can't turn on BitLocker (encrypted drive mode) without having Secure Boot. So I tried to turn it on and just ignore the error in Magician - and it totally broke BitLocker. manage-bde said I had no eligible drives, and the BitLocker control panel wouldn't even launch any more. I ended up just going back to Win10 v1511, before the Anniversary update, so that I can use BitLocker. Looks like the Anniversary update will be unusable for me until Samsung fixes their problems.

 

Perhaps just don't use Magician instead until they fix it? it is not needed....

 

Mine is ASUS S400 CA. I have replaced HDD with Samsung 850evo SSD while windows 8.1 was running. AfterAU, I have this problem of AHCI.

 

No, you misunderstand. Magician is showing a symptom of some other problem in communication with this drive on win10 1607. Attempting to enable "encrypted drive" by enabling bitlocker and you will put the system in a state where bitlocker is totally broken. The control panel won't even open and the manage-bde shows no drives even eligible for bitlocker.

Exact same steps with exact same drive on Windows 10 1511 (or win 8) and you get a perfect "hardware encrypted" drive with bitlocker.

So not just magician, but actually the firmware in the drive, is having all kinds of problems with win10 1607, the July anniversary update.

 

OK......

I don't use Bitlocker now after issues with it on my Surface3 ( M$ replaced it cos even their techs couldn't fix it) , neither do I use the Samsung Magician SW as I Use Raid on my Desktops and it is Useless , and AFAIK Rapid Mode is a BenchMark Gimmick Mode only ?

Certainly My friend wishes he hadn't use Magician on his Laptop , me either actually, since I was the one who got to reinstall everything for him *Smile.

850 Evo's are fast enough anyway , so I personally feel Magician is not worth the problems , I have experienced.

KB