Unable to Connect to any External Drives


Ed McCauley

Well-known member
Member
Local time
10:53 AM
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148
OS
Windows 11 Pro 25H2
Win 11 Pro 64 bit 24H2
Dell Precision Laptop

Windows no longer connects to any external drives. They show up in Device Manager, but are not detected by windows explorer, or disk manager virtual disk manager despite numerous scans. I've tried plugging in to every USB port on the machine without success. Rebooting didn't help. I did a Repair Install using Windows Update, but I still can't connect to Flashdrives, Solid State, or any External HDDs.
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2Intel i7 2.60Ghz16GBNvidia Quadro P620 + Intel UHD Graphics 630
    OS
    Windows 11 Pro 25H2
    Computer type
    Laptop
    Manufacturer/Model
    Dell/Precision 351
    CPU
    Intel i7 2.60Ghz
    Motherboard
    Dell 0y8h01
    Memory
    16GB
    Graphics Card(s)
    Nvidia Quadro P620 + Intel UHD Graphics 630
    Sound Card
    Realtek
    Monitor(s) Displays
    Laptop screen only
    Screen Resolution
    1920x1080p
    Hard Drives
    PC SN730 NVMe WDC 512GB
    Mouse
    Logitech Gaming Mouse G600
    Browser
    DuckDuckGo
    Antivirus
    BitDefender
  • At a glance

    Win 11AMD Ryzen 9950X3DCorsair Dominator DDR5 32GBnVidia RTX 5080
    Operating System
    Win 11
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9950X3D
    Motherboard
    Asus ROG Crosshair X870E
    Memory
    Corsair Dominator DDR5 32GB
    Graphics card(s)
    nVidia RTX 5080
    Hard Drives
    2 Samsung NVMe M.2 SSD 9100 4TB
    PSU
    Seasonic GX-1200W
    Case
    LanCool 216
    Keyboard
    Steelseries Apex Pro Gen 3
First, how many external drives do you have plugged in? If more than one, disconnect all external devices INCLUDING any usb hubs. Plug in one flash drive directly into usb port.. Is that drive recognized and accessible?
If it is, IMO it would point to a power issue ie:not enough power from PS to run multiple drives OR if you've been using a hub, it will have to be a powered hub to provide power to the usb devices connected to it..

Remove all external drives. Go to Device Manager>click view>click show hidden devices. Non-present devices appear with a ghosted icon. Expand the "Disk drive" section. To manually remove these ghost devices, Right-click on each non-present device and select ‘Uninstall’ in the fly-out menu.

Do the same thing for "Universal Serial Bus Controllers" category and "Universal serial bus devices"

OR
You can use a tool to remove them all at once. Remove "Ghost Devices" from Device Manager...

Restart computer. Plug in flash drive again. Is it recognized?
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2 26200.8655i9-10900 10 core 20 threads32 gbnone-Intel UHD Graphics 630
    OS
    Windows 11 Pro 25H2 26200.8655
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    2x1tb Solidigm m.2 nvme /External drives 512gb Samsung m.2 sata+2tb Kingston m2.nvme
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    #1 Edge #2 Firefox
    Antivirus
    Defender+MWB Premium
  • At a glance

    Windows 11 Pro 24H2 26200.8457AMD Ryzen 7 6800U32 gbintegrated
    Operating System
    Windows 11 Pro 24H2 26200.8457
    Computer type
    PC/Desktop
    Manufacturer/Model
    Beelink Mini PC SER5
    CPU
    AMD Ryzen 7 6800U
    Memory
    32 gb
    Graphics card(s)
    integrated
    Sound Card
    integrated
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Crucial nvme
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    still too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender
    Other Info
    System 3 is non compliant Dell 9020 i7-4770/24gb ram Win11 PRO 26200.8457
Good advice.

Also, check Disk Management to see if they're recognised and assigned a drive letter
 
Last edited:

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2 Build 26200.8655Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz32.0 GB of I forget and the box is in storage.Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    OS
    Windows 11 Pro 25H2 Build 26200.8655
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built 2013
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    ROG SupremeFX Formula 8-Channel High Definition Audio
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Touch Screen Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list. OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / Mx Air Cordless
    Internet Speed
    2000/500Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
    TP-Link BE9300 WiFi 7 Bluetooth 5.4 (Archer TBE550E)
    TP-Link TX201 V1 2.5GB Lan

    Grandstream HT812 - VoIP
    ASUS DSL-AX82U - Mesh
    ASUS RT-AC68U - Mesh
    ASUS RT-BE88U Router

    Brother MFC-L2880DW Printer

    I’m on a horse.
  • At a glance

    Windows 11 Pro 25H2 Build 26200.8655 (Wifes)13th Generation Intel® Core™ i5-1340P Process...16GB LPDDR5-52001x Intel® Iris® Xe Graphics
    Operating System
    Windows 11 Pro 25H2 Build 26200.8655 (Wifes)
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7 14IRL8 - Type 82YL
    CPU
    13th Generation Intel® Core™ i5-1340P Processor(Core™ i5-1340P)
    Memory
    16GB LPDDR5-5200
    Graphics card(s)
    1x Intel® Iris® Xe Graphics
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512 GB SSD PCIe
    Mouse
    Logiteck MX Master 3S
    Internet Speed
    2000/500
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.


    Wireless Network: Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above
    Ports: 1x 1 Novo button; 2 in 1 Audio Combo jack; Micro SD Card Reader; HDMI 1.4b; 2 x USB Type-C (TBT4)
    USB 3.2 Gen 2 DP 1.4a
    PD 3.0); 1 x USB 3.2 Gen1 Type A
    Camera
    1x 1080P FHD IR/RGB Hybrid with Privacy Shutter and Dual Array Microphone
    Graphics
    1x Intel® Iris® Xe Graphics
    Monitor
    14" WUXGA
    Form Factor
    Convertible Notebook
  • Windows 11 Pro 25H2 Build 26200.8655 (Wifes)

    Yoga 7 2-in-1 14IML9 - Type 83DJ

    Processor: Intel® Core™ Ultra 7 155H Processor(Core™ Ultra 7 155H)

    Memory: 32GB LPD5X-7467

    Hard Drive: 1 TB SSD PCIe

    Wireless Network: 1x Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above

    Ports: 1 x HDMI 2.1 TMDS; 1 x Novo Button; 1 x Combo Audio Jack
    2 x USB-C (USB 4.0)
    1 x USB-A 3.2 Gen 1

    Camera: 1080P FHD IR Hybrid with Dual Microphone

    Graphics: Intel® Arc™ Graphics

    Monitor: 14" 2.8K

    ...Where's my horse?
… and, just make sure this is all in order

 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2 Build 26200.8655Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz32.0 GB of I forget and the box is in storage.Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    OS
    Windows 11 Pro 25H2 Build 26200.8655
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built 2013
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    ROG SupremeFX Formula 8-Channel High Definition Audio
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Touch Screen Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list. OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / Mx Air Cordless
    Internet Speed
    2000/500Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
    TP-Link BE9300 WiFi 7 Bluetooth 5.4 (Archer TBE550E)
    TP-Link TX201 V1 2.5GB Lan

    Grandstream HT812 - VoIP
    ASUS DSL-AX82U - Mesh
    ASUS RT-AC68U - Mesh
    ASUS RT-BE88U Router

    Brother MFC-L2880DW Printer

    I’m on a horse.
  • At a glance

    Windows 11 Pro 25H2 Build 26200.8655 (Wifes)13th Generation Intel® Core™ i5-1340P Process...16GB LPDDR5-52001x Intel® Iris® Xe Graphics
    Operating System
    Windows 11 Pro 25H2 Build 26200.8655 (Wifes)
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7 14IRL8 - Type 82YL
    CPU
    13th Generation Intel® Core™ i5-1340P Processor(Core™ i5-1340P)
    Memory
    16GB LPDDR5-5200
    Graphics card(s)
    1x Intel® Iris® Xe Graphics
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512 GB SSD PCIe
    Mouse
    Logiteck MX Master 3S
    Internet Speed
    2000/500
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.


    Wireless Network: Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above
    Ports: 1x 1 Novo button; 2 in 1 Audio Combo jack; Micro SD Card Reader; HDMI 1.4b; 2 x USB Type-C (TBT4)
    USB 3.2 Gen 2 DP 1.4a
    PD 3.0); 1 x USB 3.2 Gen1 Type A
    Camera
    1x 1080P FHD IR/RGB Hybrid with Privacy Shutter and Dual Array Microphone
    Graphics
    1x Intel® Iris® Xe Graphics
    Monitor
    14" WUXGA
    Form Factor
    Convertible Notebook
  • Windows 11 Pro 25H2 Build 26200.8655 (Wifes)

    Yoga 7 2-in-1 14IML9 - Type 83DJ

    Processor: Intel® Core™ Ultra 7 155H Processor(Core™ Ultra 7 155H)

    Memory: 32GB LPD5X-7467

    Hard Drive: 1 TB SSD PCIe

    Wireless Network: 1x Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above

    Ports: 1 x HDMI 2.1 TMDS; 1 x Novo Button; 1 x Combo Audio Jack
    2 x USB-C (USB 4.0)
    1 x USB-A 3.2 Gen 1

    Camera: 1080P FHD IR Hybrid with Dual Microphone

    Graphics: Intel® Arc™ Graphics

    Monitor: 14" 2.8K

    ...Where's my horse?
When I finally got back to this computer today, BitDefender was scanning a "new drive" that it had detected. This was the sole external drive that I had left plugged in when I abandoned this computer last night. I wondered if it would eventually detect it without further messing around...

Nothing other than the Browser window was visible on the screen. Using a keyboard shortcut I opened Task Manager. No instance of Win File Manager was running. After clicking show hidden devices, Device Manager showed no ghosts. Following a reboot, the system now appears normal and file manager detects and properly displays my SS ext drive.

File Manager seems to have caused this issue IMO. I don't like it when things fix themselves, so I consider this as an ongoing problem and I'm keeping an eye out for any abnormalities....

Thanks to all who responded, and any additional suggestions to prevent a reoccurance are greatly appreciated.
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2Intel i7 2.60Ghz16GBNvidia Quadro P620 + Intel UHD Graphics 630
    OS
    Windows 11 Pro 25H2
    Computer type
    Laptop
    Manufacturer/Model
    Dell/Precision 351
    CPU
    Intel i7 2.60Ghz
    Motherboard
    Dell 0y8h01
    Memory
    16GB
    Graphics Card(s)
    Nvidia Quadro P620 + Intel UHD Graphics 630
    Sound Card
    Realtek
    Monitor(s) Displays
    Laptop screen only
    Screen Resolution
    1920x1080p
    Hard Drives
    PC SN730 NVMe WDC 512GB
    Mouse
    Logitech Gaming Mouse G600
    Browser
    DuckDuckGo
    Antivirus
    BitDefender
  • At a glance

    Win 11AMD Ryzen 9950X3DCorsair Dominator DDR5 32GBnVidia RTX 5080
    Operating System
    Win 11
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9950X3D
    Motherboard
    Asus ROG Crosshair X870E
    Memory
    Corsair Dominator DDR5 32GB
    Graphics card(s)
    nVidia RTX 5080
    Hard Drives
    2 Samsung NVMe M.2 SSD 9100 4TB
    PSU
    Seasonic GX-1200W
    Case
    LanCool 216
    Keyboard
    Steelseries Apex Pro Gen 3
Good advice.

Also, check Disk Management to see if they're recognised and assigned a drive letter
After several scans yesterday, DM still did not find any external drives.
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2Intel i7 2.60Ghz16GBNvidia Quadro P620 + Intel UHD Graphics 630
    OS
    Windows 11 Pro 25H2
    Computer type
    Laptop
    Manufacturer/Model
    Dell/Precision 351
    CPU
    Intel i7 2.60Ghz
    Motherboard
    Dell 0y8h01
    Memory
    16GB
    Graphics Card(s)
    Nvidia Quadro P620 + Intel UHD Graphics 630
    Sound Card
    Realtek
    Monitor(s) Displays
    Laptop screen only
    Screen Resolution
    1920x1080p
    Hard Drives
    PC SN730 NVMe WDC 512GB
    Mouse
    Logitech Gaming Mouse G600
    Browser
    DuckDuckGo
    Antivirus
    BitDefender
  • At a glance

    Win 11AMD Ryzen 9950X3DCorsair Dominator DDR5 32GBnVidia RTX 5080
    Operating System
    Win 11
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9950X3D
    Motherboard
    Asus ROG Crosshair X870E
    Memory
    Corsair Dominator DDR5 32GB
    Graphics card(s)
    nVidia RTX 5080
    Hard Drives
    2 Samsung NVMe M.2 SSD 9100 4TB
    PSU
    Seasonic GX-1200W
    Case
    LanCool 216
    Keyboard
    Steelseries Apex Pro Gen 3
When I finally got back to this computer today, BitDefender was scanning a "new drive" that it had detected.

Hi, Ed

If this happens again or is still happening. Disable or uninstall BitDefender. Turn on Windows Security for protection for the interim.

Reboot without BitDefender active, see if the drives show.
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2 Build 26200.8655Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz32.0 GB of I forget and the box is in storage.Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    OS
    Windows 11 Pro 25H2 Build 26200.8655
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built 2013
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    ROG SupremeFX Formula 8-Channel High Definition Audio
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Touch Screen Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list. OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / Mx Air Cordless
    Internet Speed
    2000/500Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
    TP-Link BE9300 WiFi 7 Bluetooth 5.4 (Archer TBE550E)
    TP-Link TX201 V1 2.5GB Lan

    Grandstream HT812 - VoIP
    ASUS DSL-AX82U - Mesh
    ASUS RT-AC68U - Mesh
    ASUS RT-BE88U Router

    Brother MFC-L2880DW Printer

    I’m on a horse.
  • At a glance

    Windows 11 Pro 25H2 Build 26200.8655 (Wifes)13th Generation Intel® Core™ i5-1340P Process...16GB LPDDR5-52001x Intel® Iris® Xe Graphics
    Operating System
    Windows 11 Pro 25H2 Build 26200.8655 (Wifes)
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7 14IRL8 - Type 82YL
    CPU
    13th Generation Intel® Core™ i5-1340P Processor(Core™ i5-1340P)
    Memory
    16GB LPDDR5-5200
    Graphics card(s)
    1x Intel® Iris® Xe Graphics
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512 GB SSD PCIe
    Mouse
    Logiteck MX Master 3S
    Internet Speed
    2000/500
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.


    Wireless Network: Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above
    Ports: 1x 1 Novo button; 2 in 1 Audio Combo jack; Micro SD Card Reader; HDMI 1.4b; 2 x USB Type-C (TBT4)
    USB 3.2 Gen 2 DP 1.4a
    PD 3.0); 1 x USB 3.2 Gen1 Type A
    Camera
    1x 1080P FHD IR/RGB Hybrid with Privacy Shutter and Dual Array Microphone
    Graphics
    1x Intel® Iris® Xe Graphics
    Monitor
    14" WUXGA
    Form Factor
    Convertible Notebook
  • Windows 11 Pro 25H2 Build 26200.8655 (Wifes)

    Yoga 7 2-in-1 14IML9 - Type 83DJ

    Processor: Intel® Core™ Ultra 7 155H Processor(Core™ Ultra 7 155H)

    Memory: 32GB LPD5X-7467

    Hard Drive: 1 TB SSD PCIe

    Wireless Network: 1x Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above

    Ports: 1 x HDMI 2.1 TMDS; 1 x Novo Button; 1 x Combo Audio Jack
    2 x USB-C (USB 4.0)
    1 x USB-A 3.2 Gen 1

    Camera: 1080P FHD IR Hybrid with Dual Microphone

    Graphics: Intel® Arc™ Graphics

    Monitor: 14" 2.8K

    ...Where's my horse?
Hi, Ed

If this happens again or is still happening. Disable or uninstall BitDefender. Turn on Windows Security for protection for the interim.

Reboot without BitDefender active, see if the drives show.
Is this type of failure known to occur with BD?
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2Intel i7 2.60Ghz16GBNvidia Quadro P620 + Intel UHD Graphics 630
    OS
    Windows 11 Pro 25H2
    Computer type
    Laptop
    Manufacturer/Model
    Dell/Precision 351
    CPU
    Intel i7 2.60Ghz
    Motherboard
    Dell 0y8h01
    Memory
    16GB
    Graphics Card(s)
    Nvidia Quadro P620 + Intel UHD Graphics 630
    Sound Card
    Realtek
    Monitor(s) Displays
    Laptop screen only
    Screen Resolution
    1920x1080p
    Hard Drives
    PC SN730 NVMe WDC 512GB
    Mouse
    Logitech Gaming Mouse G600
    Browser
    DuckDuckGo
    Antivirus
    BitDefender
  • At a glance

    Win 11AMD Ryzen 9950X3DCorsair Dominator DDR5 32GBnVidia RTX 5080
    Operating System
    Win 11
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9950X3D
    Motherboard
    Asus ROG Crosshair X870E
    Memory
    Corsair Dominator DDR5 32GB
    Graphics card(s)
    nVidia RTX 5080
    Hard Drives
    2 Samsung NVMe M.2 SSD 9100 4TB
    PSU
    Seasonic GX-1200W
    Case
    LanCool 216
    Keyboard
    Steelseries Apex Pro Gen 3
Is this type of failure known to occur with BD?

I did read of some instances. Here is one mention of it from Feb 19th.

Google something like: BitDefender preventing file explorer from seing new (or just) external drives

I uninstalled BitDefender Total and the problem was gone.

 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2 Build 26200.8655Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz32.0 GB of I forget and the box is in storage.Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    OS
    Windows 11 Pro 25H2 Build 26200.8655
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built 2013
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    ROG SupremeFX Formula 8-Channel High Definition Audio
    Monitor(s) Displays
    5 x LG 25MS500-B - 1 x 24MK430H-B - 1 x Wacom Pro 22" Touch Screen Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list. OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech: G402 / G502 / Mx Masters / Mx Air Cordless
    Internet Speed
    2000/500Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
    TP-Link BE9300 WiFi 7 Bluetooth 5.4 (Archer TBE550E)
    TP-Link TX201 V1 2.5GB Lan

    Grandstream HT812 - VoIP
    ASUS DSL-AX82U - Mesh
    ASUS RT-AC68U - Mesh
    ASUS RT-BE88U Router

    Brother MFC-L2880DW Printer

    I’m on a horse.
  • At a glance

    Windows 11 Pro 25H2 Build 26200.8655 (Wifes)13th Generation Intel® Core™ i5-1340P Process...16GB LPDDR5-52001x Intel® Iris® Xe Graphics
    Operating System
    Windows 11 Pro 25H2 Build 26200.8655 (Wifes)
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7 14IRL8 - Type 82YL
    CPU
    13th Generation Intel® Core™ i5-1340P Processor(Core™ i5-1340P)
    Memory
    16GB LPDDR5-5200
    Graphics card(s)
    1x Intel® Iris® Xe Graphics
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512 GB SSD PCIe
    Mouse
    Logiteck MX Master 3S
    Internet Speed
    2000/500
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.


    Wireless Network: Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above
    Ports: 1x 1 Novo button; 2 in 1 Audio Combo jack; Micro SD Card Reader; HDMI 1.4b; 2 x USB Type-C (TBT4)
    USB 3.2 Gen 2 DP 1.4a
    PD 3.0); 1 x USB 3.2 Gen1 Type A
    Camera
    1x 1080P FHD IR/RGB Hybrid with Privacy Shutter and Dual Array Microphone
    Graphics
    1x Intel® Iris® Xe Graphics
    Monitor
    14" WUXGA
    Form Factor
    Convertible Notebook
  • Windows 11 Pro 25H2 Build 26200.8655 (Wifes)

    Yoga 7 2-in-1 14IML9 - Type 83DJ

    Processor: Intel® Core™ Ultra 7 155H Processor(Core™ Ultra 7 155H)

    Memory: 32GB LPD5X-7467

    Hard Drive: 1 TB SSD PCIe

    Wireless Network: 1x Wi-Fi 6E 2x2 AX; Bluetooth® 5.1 or above

    Ports: 1 x HDMI 2.1 TMDS; 1 x Novo Button; 1 x Combo Audio Jack
    2 x USB-C (USB 4.0)
    1 x USB-A 3.2 Gen 1

    Camera: 1080P FHD IR Hybrid with Dual Microphone

    Graphics: Intel® Arc™ Graphics

    Monitor: 14" 2.8K

    ...Where's my horse?
I did read of some instances. Here is one mention of it from Feb 19th.

Google something like: BitDefender preventing file explorer from seing new (or just) external drives



That sounds exactly like my experience. Thanks--I think you nailed it.
 

My Computers My Computers

  • At a glance

    Windows 11 Pro 25H2Intel i7 2.60Ghz16GBNvidia Quadro P620 + Intel UHD Graphics 630
    OS
    Windows 11 Pro 25H2
    Computer type
    Laptop
    Manufacturer/Model
    Dell/Precision 351
    CPU
    Intel i7 2.60Ghz
    Motherboard
    Dell 0y8h01
    Memory
    16GB
    Graphics Card(s)
    Nvidia Quadro P620 + Intel UHD Graphics 630
    Sound Card
    Realtek
    Monitor(s) Displays
    Laptop screen only
    Screen Resolution
    1920x1080p
    Hard Drives
    PC SN730 NVMe WDC 512GB
    Mouse
    Logitech Gaming Mouse G600
    Browser
    DuckDuckGo
    Antivirus
    BitDefender
  • At a glance

    Win 11AMD Ryzen 9950X3DCorsair Dominator DDR5 32GBnVidia RTX 5080
    Operating System
    Win 11
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 9950X3D
    Motherboard
    Asus ROG Crosshair X870E
    Memory
    Corsair Dominator DDR5 32GB
    Graphics card(s)
    nVidia RTX 5080
    Hard Drives
    2 Samsung NVMe M.2 SSD 9100 4TB
    PSU
    Seasonic GX-1200W
    Case
    LanCool 216
    Keyboard
    Steelseries Apex Pro Gen 3
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