Can you read the card in File Explorer? If not then the card may be corrupted. Obviously any contents on the card are not needed or else you would not be wanting to format it but just in case there may be anything sensitive on it I would just totally destroy the card.
Windows 11 ProIntel Core i9-10900XCorsair 64 GB (4 x 16 GB) CMW64GX4M4C3000C15 ...GIGABYTE GeForce GTX 1660 Super Mini ITX 6 GB OC
OS
Windows 11 Pro
Computer type
PC/Desktop
Manufacturer/Model
Stigg's Build
CPU
Intel Core i9-10900X
Motherboard
GIGABYTE X299X DESIGNARE 10G
Memory
Corsair 64 GB (4 x 16 GB) CMW64GX4M4C3000C15 Vengeance RGB Pro 3000Mhz DDR4
Graphics Card(s)
GIGABYTE GeForce GTX 1660 Super Mini ITX 6 GB OC
Sound Card
Realtek ALC1220
Monitor(s) Displays
Samsung 27" FHD LED FreeSync Gaming Monitor (LS27F350FHEXXY)
Screen Resolution
1920 x 1080
Hard Drives
Samsung 970 Pro Series 1TB M.2 2280 NVMe SSD
Western Digital Red Pro WD8003FFBX-68B9AN0 8 TB, 7200 RPM, SATA-III
Western Digital Red Pro WD8003FFBX-68B9AN0 8 TB, 7200 RPM, SATA-III
PSU
Corsair HX1200 1200W 80 Plus Platinum
Case
Fractal Design Define 7 Black Solid Case
Cooling
Noctua NH-D15 Chromax Black
Keyboard
Razer Ornata V2
Mouse
Razer DeathAdder Essential
Internet Speed
FTTN 100Mbps / 40Mbps
Browser
Mozilla Firefox
Antivirus
N/A
Other Info
Logitech BRIO 4k Ultra HD USB-C Webcam
At a glance
Windows 10 ProCore i7-8750HSK Hynix 32 GB (2 x 16 GB) HMA82GS6CJR8N-VK 1...NVIDIA GeForce GTX 1070
Operating System
Windows 10 Pro
Computer type
Laptop
Manufacturer/Model
ASUS ROG Zephyrus M GM501GS
CPU
Core i7-8750H
Motherboard
Zephyrus M GM501GS
Memory
SK Hynix 32 GB (2 x 16 GB) HMA82GS6CJR8N-VK 16 GB DDR4-2666 DDR4 SDRAM
Failure to write or format an SD card or USB stick is a common symptom of a defective item and this cannot be repaired.
Its contents might remain readable for ages.
Windows 11 ProIntel Core i9-10900XCorsair 64 GB (4 x 16 GB) CMW64GX4M4C3000C15 ...GIGABYTE GeForce GTX 1660 Super Mini ITX 6 GB OC
OS
Windows 11 Pro
Computer type
PC/Desktop
Manufacturer/Model
Stigg's Build
CPU
Intel Core i9-10900X
Motherboard
GIGABYTE X299X DESIGNARE 10G
Memory
Corsair 64 GB (4 x 16 GB) CMW64GX4M4C3000C15 Vengeance RGB Pro 3000Mhz DDR4
Graphics Card(s)
GIGABYTE GeForce GTX 1660 Super Mini ITX 6 GB OC
Sound Card
Realtek ALC1220
Monitor(s) Displays
Samsung 27" FHD LED FreeSync Gaming Monitor (LS27F350FHEXXY)
Screen Resolution
1920 x 1080
Hard Drives
Samsung 970 Pro Series 1TB M.2 2280 NVMe SSD
Western Digital Red Pro WD8003FFBX-68B9AN0 8 TB, 7200 RPM, SATA-III
Western Digital Red Pro WD8003FFBX-68B9AN0 8 TB, 7200 RPM, SATA-III
PSU
Corsair HX1200 1200W 80 Plus Platinum
Case
Fractal Design Define 7 Black Solid Case
Cooling
Noctua NH-D15 Chromax Black
Keyboard
Razer Ornata V2
Mouse
Razer DeathAdder Essential
Internet Speed
FTTN 100Mbps / 40Mbps
Browser
Mozilla Firefox
Antivirus
N/A
Other Info
Logitech BRIO 4k Ultra HD USB-C Webcam
At a glance
Windows 10 ProCore i7-8750HSK Hynix 32 GB (2 x 16 GB) HMA82GS6CJR8N-VK 1...NVIDIA GeForce GTX 1070
Operating System
Windows 10 Pro
Computer type
Laptop
Manufacturer/Model
ASUS ROG Zephyrus M GM501GS
CPU
Core i7-8750H
Motherboard
Zephyrus M GM501GS
Memory
SK Hynix 32 GB (2 x 16 GB) HMA82GS6CJR8N-VK 16 GB DDR4-2666 DDR4 SDRAM
Check with a different card reader, just in case yours is faulty. If you are using an adapter, try another adapter or read the microSD card directly, if you have the appropriate slot. In case that the card is corrupt, you can buy another one, but it doesn't harm to load diskpart and try to completely delete it. Search for CMD or PowerShell and Run as Administrator, then type this code:
Code:
diskpart
list disk
select disk X
clean
exit
exit
Where X is the number of the card reader as appears in the list. Be careful not to delete any other of your disks! Then you can either create a new partition and format it from Disk Manager or you can type this code (after the clean command) :
Code:
create partition primary
select partition 1
format fs=ntfs quick
If you prefer FAT32 format, replace NTFS with FAT32.
Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
Internet Speed
VDSL 50 Mbps
Browser
MICROSOFT EDGE
Antivirus
WINDOWS DEFENDER
Other Info
Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.