For this purpose, please enable AHCI via registry in the MS Windows all OS, it was still called Msahci.sys! But this as a sideline!
To run the registry in Windows 10, 8.1, ... press the [Windows + R] key combination, then simply enter the text regedit and confirm the command by pressing Enter!
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\storahci\StartOverride
"0" to the value "0" (zero)!
Then restart your Windows 10, 8.1, ... Desktop PC or your Microsoft Windows Server 2019, 2016, .... ! And activate ergo switch from IDE to AHCI in the PC BIOS at PC-Boot [Del.-Key]
(Image-1) AHCI in Windows 8.1 and 8 via storahci (activate, switch)!
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\storahci]
"Start"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\storahci\StartOverride]
"0"=dword:00000000
3.) What are the advantages / disadvantages when using AHCI on Win 8.1 / 8?
advantage:
The Windows 8.1, or 8 starts quickly and the requests on the disk are accelerated by 10-20 percent!
disadvantage:
But it also happens that older hard disks that do not get along so well and it comes to freezing, or the MS-Explorer is a few seconds paralyzed!
It is then quite annoying to work, here I recommend turning off, or switch from AHCI mode to IDE mode!
Warning: If multiple operating systems are installed on the same computer, this should also be changed to AHCI, otherwise you have to change the AHCI / IDE BIOS entry again! The operating system on which the AHCI was not enabled, so it can not start (boot)!
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