c drive not seen by UEFI

[mindnightmix]

Envy x360 -15-bp143cl

Product Number: 3TS71UA#ABA

Windows 11 64.

had a 256 Toshiba M.2 2280, worked fine, updated to 512 M.2 2280 then could not create new folder anywhere. Updated the bios from 4.0 to 5.2. User Deep_World responded with questions but I cant get them. I says I'm not allowed. the laptop will start in Legacy not in UEFI. I have ran all the tests and they have all passed.

any help, I apologize for not knowing how to use the community. 

[VikramTheGreat]

Hi @mindnightmix,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

Welcome to the HP Community, and no worries at all about using the forum. You're in the right place, and we'll do our best to help. From what you've described, the issue started after replacing the original 256 GB Toshiba M.2 2280 SSD with a 512 GB M.2 2280 SSD. It's good to know that the HP Hardware Diagnostics passed, as that indicates the notebook is detecting the SSD correctly and there are no obvious hardware issues.
 

Based on the information you've shared, my first suspicion is that the new SSD was cloned or installed using an MBR partition layout, which could explain why the notebook only boots in Legacy mode. The inability to create new folders, however, is more likely related to Windows file system corruption or an issue introduced during the drive migration, rather than a fault with the SSD itself or the BIOS.

To help us narrow this down, could you let us know:

• What is the manufacturer and exact model of the new 512 GB M.2 SSD? 
• Did you clone the original SSD or perform a clean installation of Windows 11? 
• When you switch the BIOS to UEFI, what exactly happens? Do you receive a Boot Device Not Found message, or does Windows simply fail to start? 

In the meantime, let's check a few things.
1. Verify whether the SSD is GPT or MBR

• Press Windows + X and open Disk Management. 
• Right-click the disk label (Disk 0) and select Properties. 
• Under the Volumes tab, check the Partition Style. 
  • GUID Partition Table (GPT) is required for UEFI boot. The 
  • Master Boot Record (MBR) explains why the notebook only boots in Legacy mode. 

2. Check Windows for file system corruption
Open Command Prompt as Administrator and run: sfc /scannow

Once that completes, run: DISM /Online /Cleanup-Image /RestoreHealth

Restart the notebook after both commands finish and check whether you're able to create a new folder.

3. Check folder permissions
Try creating a new folder in different locations, such as:

• Desktop 
• Documents 
• A folder on the C: drive that you created yourself 

If the issue occurs everywhere, it's more likely a Windows or file system issue rather than a permissions problem with a specific folder.

Based on everything you've shared so far, my first suspicion is that the new SSD was installed or cloned using an MBR partition layout, which would explain why the notebook only boots in Legacy mode. The folder creation issue, however, points more toward Windows itself, either file system corruption or an issue introduced during the migration to the new drive, rather than the SSD hardware or BIOS.

I hope this helps.

Take care and have an amazing day!

[mindnightmix]

Hello, the ssd is a Kingspec NX-512 2280 M.2 NVMe. I deleted all partitions and did a clean install of windows 11. It eventually worked. I used the Microsoft account and it found a backup from awhile ago. It was working.  Then It  did a bunch of updates and after the last security update it was running for about 10 minutes,  then restarted and no drive found.  Yes, I cloned the 512 from the original 256 m.2 2280.  When trying to go back to the original Toshiba 256, it had the no drive found unless I restarted in legacy.  I did try most of what was suggested before the clean install, all passed except one step ( the step escapes me at the moment.) I will try all suggested when possible.

Thank you so much for your help.

[VikramTheGreat]

Hi @mindnightmix,

Thank you for the detailed update. We appreciate you taking the time to share everything you've tried.
 

It's helpful to know that the clean installation of Windows 11 completed successfully and the system initially detected the Kingspec NX-512 2280 M.2 NVMe SSD, but after installing Windows updates, the notebook restarted and began reporting "No Drive Found." The fact that the original Toshiba 256 GB SSD also wasn't detected unless Legacy mode was used suggests the issue may not be specific to the replacement SSD alone.
 

We also appreciate your confirming that:

• The Kingspec SSD was cloned from the original Toshiba SSD.
• You later performed a clean installation of Windows 11.
• Most of the previously suggested diagnostics completed successfully, with only one step not passing.

Please go ahead and try the remaining suggestions when you have the opportunity, especially the step that did not pass, and let us know the outcome. Also, if you can recall which diagnostic reported the failure or share any error or Failure ID that was displayed, that information will help us better understand what may be preventing the drive from being detected consistently.
 

We'll be happy to continue working with you once you have those results.
 

Take care and have a great day!

[mindnightmix]

Hello, here's a update.  I ran sfc /scannow and it found errors and corrected them. I tried (many times) the DISM /online  cleanup-image /restorehealth it said not valid. I went in the bios and set to defaults, saved, restarted. It starts in windows 11 for exactly 80 seconds. Ssy errors, restarts and error 03F, no ssd.

Thank you

[VikramTheGreat]

Hi @mindnightmix,

Thank you for the update and for taking the time to test those steps.
 

It's helpful to know that SFC found and repaired corrupted system files, but the system still crashes after approximately 80 seconds before reporting Hard Disk (3F0) Boot Device Not Found. Since you've also restored the BIOS to its default settings and the issue persists, we'd like to determine whether the SSD is intermittently failing or if the issue is related to the storage controller.
 

At this point, could you please run the HP PC Hardware Diagnostics UEFI storage test and share the results with us?

1. Turn the notebook off completely.
2. Turn it back on and immediately tap the Esc key repeatedly until the Startup Menu appears.
3. Press F2 to open HP PC Hardware Diagnostics UEFI.
4. Select Component Tests > Storage.
5. Run both the Quick Test and, if available, the Extensive Test.
6. If a test fails, please share the Failure ID and the test result.

The hardware diagnostics will help determine whether the SSD is functioning correctly or if there is a hardware issue causing the 3F0 error. Once we have those results, we'll be able to guide you with the most appropriate next steps.
 

We look forward to your update.
 

Take care and have a great day!

[mindnightmix]

New update,  I cleared the 512 ssd and re installed windows 11. I did not let Microsoft cloud load the backup. So far it's working fine. It seams slower, mabey it's me