Win11升级后NVMe SSD无法识别问题求助

Hey Jeff, sorry to hear you're stuck with this super frustrating NVMe SSD issue after upgrading to Windows 11—drives vanishing from the OS but showing up in BIOS is such a headache. Let's walk through some targeted fixes since Disk/Device Manager isn't even seeing them:

• Tweak BIOS PCIe Power Management
  Even though you've confirmed AHCI and UEFI are set correctly, some motherboards have PCIe ASPM (Active State Power Management) settings that clash with Windows 11's default power rules. Boot into BIOS, look for options like "PCIe ASPM" or "Power Management for PCIe Devices," and try switching it to Disabled or Auto (whichever isn't currently selected). Save changes and reboot to check if the drives appear.

• Reset BIOS to Defaults
  Windows upgrades can sometimes mess with hidden BIOS settings without you noticing. Boot into BIOS, find the "Load Optimized Defaults" or "Restore Default Settings" option, apply it, then double-check that AHCI and UEFI mode are still enabled (they usually are by default after reset). Reboot and see if Windows picks up the drives.

• Use WinPE to Diagnose the Issue
  Make a Windows 11 installation media (using Microsoft's official Media Creation Tool), boot from it, and select "Repair your computer" to enter the WinPE environment. Open Command Prompt and run these commands:

  diskpart
  list disk
  

  If your NVMe drives show up here, the problem is with your Windows installation (not hardware). Since you don't care about data, you can even run the clean command (this erases all data on the drive) then reboot to see if Windows detects it afterward.

• Force Reinstall NVMe Drivers
  If WinPE sees the drives, boot back into Windows, open Device Manager, click "View" > "Show hidden devices." Look under "Storage controllers" for unknown devices or entries with yellow exclamation marks (these are likely your missing NVMe controllers). Right-click them, select "Uninstall device," check the box to delete the driver software, then restart your PC. Windows should reinstall the default NVMe driver automatically—if not, grab the official Samsung NVMe driver from their support page and install it manually.

• Install All Windows Updates
  Microsoft often releases patches for NVMe compatibility issues. Go to Settings > Windows Update > Check for updates, and install everything available—including optional driver updates under "Advanced options."

Let me know if any of these steps get your drives working again—happy to dig deeper if we need to!

备注：内容来源于stack exchange，提问作者Jeff1218