QUOTE(jsc_tidus @ Aug 9 2015, 07:12 PM)
from the stock win 8 to win 8.1, then last week to win 10.
Take the plunge but on the setup for win 10 got error, cant get anything to boot up.
decided to revert back to the stock os (win 8) and somehow i think i deleted everything on the laptop, including (i think) the system recover stuff & the raid's
Now on windows 8.1, seems working fine but lost the raid. the whole week has been a mess for me, UEFI & legacy in my head for hours, but still didnt really understand it. now im on legacy boot mode, i wish i can get the raid function back. if anyone got a link or URL or tutorial for it, i would really appreciate it if you can share

uefi install is easy once you understand the concept. first of all, back up all data, because steps that follow will wipe everything. first of all, for uefi install to work you need 3 things: 1. uefi bios; 2. bootable usb with install media that can do uefi install; and finally a target disk that is gpt type. to avoid any data loss issues due to carelessness, take out all data disks, and leave the os disk untouched.
1. make a bootable usb with your w8.1 dvd or iso. format the usb with fat32, and copy the contents of dvd/extract the contents of iso directly into your usb. that's it. you have a bootable usb that can do uefi install hehe
2. make sure the bios is set to uefi. you can turn legacy off, and turn secureboot on. don't turn fastboot on first. do this later. for sata operations, select raid if you wanna do ssd caching or raid.
3. boot the machine with usb plugged in and spam f12 key on boot. in boot selection menu, choose your usb entry, usually labelled as uefi to continue.
4. once in the windows install screen, press shift+f10 to bring up administrative command prompt. type diskpart and press enter. you will be in diskpart prompt after this. follow the commands in blue below and press enter key.
5. type
list disk and identify your os disk and caching ssd. remember the disk numbers.
6. type
sel disk x (where x is the disk number of your os disk or caching ssd. if it's a single disk it should be 0)
7. type
clean. this will clear everything. all your previous system partitions, folders, files, disk type will be gone for good.
8. repeat step 6 to 7 for your caching ssd.
9. type
exit twice to get out of diskpart and command prompt. now continue your os installation as usual. the installer will make the os disk a gpt type for uefi install, and apply default layout properly.
that's all. once you're in windows, install all drivers as usual. (start with intel chipset, rst driver and software, and intel me) install .net framework 3.5 from programs and features first before installing aw osd display thing and command center.
now, follow the tutorial,
http://www.dell.com/support/article/us/en/19/SLN131651/EN to enable ssd caching.
QUOTE(e_mc_square @ Aug 10 2015, 09:44 AM)
I believe all Alienware laptop is RAID 0. Yours might be too.
RAID 0 can't be just "lost" without loosing all your data.
If RAID 0 broken, mean all your hard drive that configure related to that RAID 0 will broken.
And same thing, it can't configure just like "get the raid function back" you will need to format your whole hard drive that you wanted to RAID it to start.
When you boot up, there will be a screen with white and green word. Required you to press CTRL + I if not mistaken. From there, is where you setup your RAID. But always remember to back up your stuff to prevent unnecessary human error and cause all your precious data lost.
well no. not all alienware laptops come with raid 0. raid 0 means you stripe 2x identical disks to become one. raid is common in aw because is used to do ssd caching using intel rst software.
edit: to create a bootable usb for legacy w7/8.1/10 install, you just need to format the usb with ntfs.
This post has been edited by horns: Aug 12 2015, 10:35 PM