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Some Windows users have experienced a situation where a hard drive is not detected after upgrading to Windows 10. If you’re one of them, fix it with these steps.
Option 1: Check that the Disk is Online
Before we get to the tough bits, lets do the basic stuff. Check that your second disk is not offline. If the disk is offline, the hard drive will be not detected.
Here is how to check:
- Press Windows logo + R keys on your keyboard. This will open Run command.
- At the Run command, type diskmgmt.msc then click OK.
- When Disk Management opens, look at the disks on the left pane of Disk Management tool. If the disk has a red circle, it may mean that it is offline.
- To bring the disk online, right-click it. Then select Online. The disk will come online and the red circle will no longer be there.
The hard drive will now be detected by the computer and becomes available in “This PC”.
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- Tool free design, easy to install,Transfer Rates Up to 480 Mbps when connected to a USB 2.0 port,Transfer Rates Up to 5 Gbps when connected to a USB 3.0 port.
- Suitable for 2.5” SATA/SSD;Supports Standard Notebook 2.5″ SATA and SATA II Hard drives
- Optimized for SSD, Supports UASP SATA III,Backwards-Compatible with USB 2.0 or 1.1
- Hot-swappable, plug and play, no drivers needed
- Operating System:Supported Operating Systems:Mac,Windows;Supported Windows Versions :Windows 7, Windows 8, Windows Vista, Windows XP; Supported Mac Versions: Mac OS X and Higher
Option 2: Convert the Drive to GPT
If you have two drives on your computer, one GPT and the second MBR, the second drive may not be detected. Some users have reported fixing hard drive not detected issue by converting both drives to GPT.
The fix requires a 2-step solution:
- Convert the second hard drive from MBR to GPT
- Change your computer from Legacy to UEFI boot
Here are the steps:
- Boot your computer to recovery. Follow the steps in this guide Start Windows 10 safe Mode by Interrupting Normal Boot .
When you get to Troubleshoot screen, click Troubleshoot. Then proceed with the steps below.
- Then click Advanced options.
- When Advanced options opens, click Command Prompt.
Before you proceed with the next steps, connect your drive to another computer and BACK IT UP! When you convert from MBR to GPT, you are likely to lose you data.
- At Command Prompt, to confirm that the drives meet the requirement, type this command. Then press Enter.
mbr2gpt/disk:1/validate
- To convert the drive, type this command and press enter.
mbr2gpt /convert You can also convert MBR disk to GPT using DISKPART. To use this method, execute these commands in order.
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- Feature - BENFEI Type-C/Type-A 2.5 inch Hard Drive Enclosure easily hook up your 2.5 inch SATA I/II/III hard drive to transfer files from one PC to another PC, laptop, PS4 or as a USB external hard drive.
- Speed - Up to 5 Gbps data transfer rate with supports UASP SATA III transmission protocol, which is 70% faster than traditional USB3.0. Backward compatible with USB 2.0 or 1.1 ports.
- Design - With USB Type-C/Type-A plug design, provide a easy connection option to laptop/phone/pad. Tool free installation, Plug & Play, No driver needed for this SATA enclosure. Just push out the cover, plug in the drive, close the cover and go. Hot-Swappable.
- Compatibility - BENFEI Hard Drive Enclosure supports Windows, LINUX, MacOS 8.0, and above. Specifically designed for 7/9.5mm thick, 2.5 inches, 6TB HDD & SSD. Compatible with Western Digital, Seagate, Toshiba, Samsung, Kingston, Crucial, Hitachi, and more.
- Warranty - Exclusive BENFEI Unconditional 18-month Warranty ensures long-time protection of your purchase; Friendly and easy-to-reach customer service to solve your problems timely.
DISKPART
LIST DISK
SELECT DISK 1
Change 1 to the disk number of the drive you are converting.
CONVERT GPT
After converting the drive to GPT, boot to BIOS and change change to UEFI boot.
When you boot your computer, “hard drive not detected” issue should be resolved.
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- SATA-Only Compatibility: Fits 2.5" and 3.5" SATA HDDs and SSDs. NOT compatible with SAS, M.2 NVMe, M.2 SATA, NVMe PCIe, or IDE/PATA drives. Note: some 4TB+ 3.5" drives with non-standard PCB height may not seat correctly — verify your drive's physical dimensions before purchasing.
- Tool-Free Setup: Slide, click, and go—no tools or screws needed. Swap drives in seconds without hassle.
- USB 3.0 (USB-A) with UASP: USB Type-A host connection — a USB-C to USB-A adapter is required if your computer only has USB-C ports (not included). Transfer speeds up to 625 MB/s theoretical maximum; typical real-world speeds are 100–180 MB/s for HDDs and up to 400–500 MB/s for SSDs.
- External Power Required: Includes 12V/2A AC power adapter — a wall outlet is needed (not bus-powered via USB). Aluminum shell with internal ABS shock-absorbing tray for durability and heat dissipation.
- Plug & Play — Windows 10/11, macOS & Linux: No drivers needed. LED indicates power and activity status. Note: S.M.A.R.T. diagnostics are not accessible through the USB bridge. Hard drive not included.
But if your hard drive is still not detected, try the next fix.
Option 3: Install the Vendor’s HDD Driver
If you have tried fixes 1 and 2 but your hard drive is still not detected the next step is to download the driver for the hard driver and install it.
For instance if you use a Seagate hard drive, visit their website (usually Support.domain.com). Then search for and download the driver. Finally, install the driver, restart your computer and see whether the drive is detected.
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- Feature - BENFEI 2.5 inch Hard Drive Enclosure easily hook up your 2.5 inch SATA I/II/III hard drive to transfer files from one PC to another PC, laptop, PS4 or as a USB external hard drive. USB Type-C/Type-A 10Gbps cable is included in the package.
- Speed - Adopts advanced JMS580 chipset, support up to 6 Gbps data transfer rate with more stable and realiable data speed transmission compared with other solution. Supports UASP SATA III transmission protocol, which is 70% faster than traditional USB3.0, Backward compatible with USB 2.0 or 1.1 ports.
- Design - Tool free installation, Plug & Play, No driver needed for this SATA enclosure. Just push out the cover, plug in the drive, close the cover and go. Hot-Swappable.
- Compatibility - BENFEI Hard Drive Enclosure supports Windows, LINUX, MacOS 8.0, and above. Specifically designed for 7/9.5mm thick, 2.5 inches, 6TB HDD & SSD. Compatible with Western Digital, Seagate, Toshiba, Samsung, Kingston, Crucial, Hitachi, and more.
- 【18 MONTH WARRANTY】 Exclusive BENFEI Unconditional 18-month Warranty ensures long-time satisfaction of your purchase; Friendly and easy-to-reach customer service to solve your problems timely.
If your hard drive is still not detected, the final undesirable fix is to…
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Option 4: Perform a Fresh Windows Install
As part of your fresh install, perform the following:
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problems- Make your BIOS UEFI boot, instead of Legacy.
- Format the drives as GPT.
We have another guide with detailed steps by step to install Windows 10.
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- 2.5" SATA Drives Only — SSD & HDD: Compatible with 2.5" SATA I/II/III SSDs and laptop HDDs. NOT compatible with: M.2 NVMe drives, M.2 SATA drives, 3.5" desktop HDDs, or slim SATA optical drives. Verify your drive has a standard 2.5" SATA connector before purchasing.
- USB Bus-Powered — No Adapter Needed for Most Drives: Powers most 2.5" SATA SSDs and laptop HDDs directly from USB. Note: Some older or high-capacity 2.5" mechanical HDDs may draw more current than a single USB port provides — if a drive fails to spin up, try a powered USB hub or a different USB 3.0 port.
- USB 3.0 (USB-A) — 5Gbps with UASP: Host connection is USB Type-A (USB-A). Computers with only USB-C ports require a separate USB-C to USB-A adapter (not included). UASP support for faster transfers on compatible systems.
- Plug & Play: No drivers required; hot-swappable design for quick access to drives on Windows, macOS, and Linux
- Usage Note: Not intended for all configurations such as system boot drives or certain embedded systems; compatibility may vary by device
Conclusion
One of the 4 fixes in this guide should resolve this for you.
If you found the guide helpful, kindly spare a few minutes to share your experience with us by responding to the “Was this page helpful?” question below.
Finally, you may find our other Windows 10 Fix-it guides helpful.
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