johnelmer227

Oh yeah i already know that since! But i'm still no fix about of SSD support of Windows 8.1 for now. Just stuck here in Windows 11 but my HDD was backup purposes!

That's interesting. Probably in HDD was boot fine when back day in Windows 7 with modified with SSD was booted but 8.1 can't... Not tested in 8 yet

It was boot fine since HDD but SSD can't boot it was shows blue screen. I never updated BIOS yet just used a kinda old BIOS

I think do i need install to HDD first and fix some drivers and putting clone into SSD... Probably this is bad idea.

Yes i did but however VMD doesn't exist in BIOS it only has Intel VTX and VTD idk what are those about

Okay so here are: - First time was i boot setup USB and formatting an NVMe SSD and installing on it. - After that in first time boot of Windows 8.1 and causes for Blue screen called "INTERNAL_POWER_ERROR" and being restarted fast. - Until i booted back again to Setup and pressing an Shift + Fn + F10 to open an cmd. As i typed command as "notepad" - Then i was pressing an File -> Open and i finding an "intelpep.sys" file to deleting it for solution with "INTERNAL_POWER_ERROR" code and i found it into "C:\Windows\System32\Drivers\intelpep.sys" and deleted with an opening notepad file - And after deletion an "intelpep.sys" and it was success by Notepad. Until I'm trying to restart with exiting setup. - After this now it was boot with spinning logo without an Blue screen in first time. But later i got another causes an Blue screen called "INACCESSIBLE_BOOT_DEVICE" it was almost getting "Getting devices ready" text and i had blue screen and restarted again. This is happens in Windows 8.1 with an SSD installed!

I think that "intelpep.sys" file on Windows 8.1 is not compatible for Kaby Lake which is designed for older Intel chipsets. In Windows 10 had "intelpep.sys" file and it's boot fined.

I think it is... But sadly i didn't get an error code I heard in YouTube that someone running an Windows 8.1 on Tiger Lake which as modern laptop with NVME and he did boot successfully by modified ISO and pre-installing drivers by NTLite. But idk which NVMe support had for Kaby Lake it seems i'm gonna prefer install with HDD as slower...

Uhm... I deleted "intelpep.sys" causes of bluescreen when it has in this file. After deleted this "intelpep.sys" file when it showing as "Inacessible boot device" without an code. No one booted yet not showing as "Getting device ready" and turned to blue screen. In hdd was booted fine but ssd didn't...

Hello guys i'm just back here from since past months anyway i was trying to install an Windows 8.1 on Acer Swift 3 with NVMe SSD until spinning loop at boot and i getting BSOD error. Anyone knows to fix this probably drivers missing on it. Sorry i no have proof because BSOD was too fast to restart itself.

Yes i had also Tiger Lake on my bro's Nitro 5 and he's also wanted to install a windows 8.1 but still no problems at all within modified iso

Update again Thank you so much for help. Now i can using Windows 8.1 at all within dual boot with Windows 11! Drivers are all ok no problems at all! Thanks to @Jakob99 For solving INTERNAL_POWER_ERROR now it's solved everything on my Acer Swift 3

Update i manage to fix it for touchpad and usb's. That's causes need to switch into Intel Power Engine Plugin to Standard Power Managent Controller to load up all drivers. One problem again is sounds only I already install realtek audio driver but didn't work at all...

Hm... i can't download it''s saying "the file has been blocked". Sadly my serial io has 9D60 and 9D61 only

Running guys but only touchpad and USB driver only. We don't know intel extensible 3.0 driver got faced error "does not meet minimum requirements" They're only both has bugs but only use as keyboard.