Hard Drive not recognized

Tech3
Tech3 Member Posts: 1 New User
edited March 2023 in 2017 Archives
When the Hard Drive (HDD) or Solid State Drive (SSD) is not been recognized by the unit and the customer can see both of them in the BIOS, it might be the RAID1 configuration.
Just you to be familiar with RAID.

RAID: stands for “redundant array of independent disks,” although there’s a type of RAID that provides no redundancy and only increases performance. Those RAID has more than 5 different configuration levels.

This solution is for the most common issue with ACER devices.
Run Command Prompt as Admin (Windows logo key + x - click on Command prompt (Admin)
Invoke a Safe Mode boot with the command: bcdedit /set {current} safeboot minimal
Restart the PC and enter your BIOS during bootup pressing F2 or Delete key.
Change from RAID to AHCI mode then Save & Exit (F10).
Windows 10 will launch in Safe Mode, once booted, be sure that C: is your SSD and not the HDD.
( if it gives a "no bootable device" error, you need to check on BIOS if windows boot manager is the first bootable device.).
Right click the Window icon and select to run the Command Prompt (Admin).
Inside the CMD windows, type "diskpart".
On diskpart, type "list disk".
Take note of the correct disk ID.
To erase select "disk x" (x is the ID of your HDD to erase).
Clean.
Exit.

Your HDD will be erased completly.
Then open a Command Prompt (admin) again and Cancel Safe Mode booting with the command: bcdedit /deletevalue {current} safeboot
Restart your PC once more and this time it will boot up normally but with AHCI mode activated.