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Thread Starter 
Hello,

microSD cards:-
Samsung EVO microSD 64GB UHS-1
SanDisk Ultra microSD 64GB UHS-1

Computer specification:-
See my sig down below (NOT Dell)
- OEM "no brand" USB & all-in-one card reader hub.

Both cards working without any problem in my android phone & in my action camera. The Samsung card was fully utilized in my action camera (almost full). All of the videos are playable.

However, when trying to read the cards in my computer, windows keep asking me to format them. If I try to format them, I will get unsuccessful message instead. Other than windows built-in format tool, I also tried:-
- HD Tune Pro (for testing the cards)
- MiniTool Partition Wizard
- USB Disk Storage Format (throw "Device media is write-protected" error when trying to format)

I can scan the cards for error & running Read benchmark without any problem but when I try to run anything related to Write operation (including erase, format & even creating new partition), it will failed.

I will be grateful for any help anyone can provide.


Edit: It turned out the card reader is defective. Duh! I genuinely believed it was driver or OS related but turned out it is not the case.
Edited by kizwan - 8/13/16 at 8:05am
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WD WD6400AAVS 640GB 8MB SATA-II Caviar Green 2 x Plextor PX-M5S 128GB (RAID0) Liteon 12x Blu-ray Drive COMBO 2 x (EK-FC R9-290X - Acetal, EK-FC R9-290X Back... 
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NZXT Sentry 2 fan controller PrimoFlex Advanced LRT 10ft Tubing - 7/16in. ID... Windows 10 Home 64-bit Samsung SyncMaster B2330H 23" 
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Philips 236G3DHSB 3D LCD LED 23" Razer BlackWidow Ultimate Seasonic X-1050 1050W Corsair Vengeance C70 Mid-Tower Gaming Case Gun... 
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Razer Imperator 2012 Realtek ALC898 8-Channel High Definition Audio ... 
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Intel Core i7 720QM Dell Studio 1557 Intel PM55 ATI Mobility Radeon HD 4500/5100 Series Samsung 2GB DDR3-1333 
RAMHard DriveOptical DriveCooling
Samsung 2GB DDR3-1333 Seagate ST9320325AS HL-DT-ST_DVD+-RW_GA11N Fan + Copper + Aluminum + Shin-Etsu G751 
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Superhero Effect
(26 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i7-3820 @4.7GHz Asus P9X79 PRO 2 x Sapphire R9 290 4GB GDDR5 Corsair Vengeance CMZ16GX3M4X1600C9 (16GB) 
Hard DriveHard DriveOptical DriveCooling
WD WD6400AAVS 640GB 8MB SATA-II Caviar Green 2 x Plextor PX-M5S 128GB (RAID0) Liteon 12x Blu-ray Drive COMBO 2 x (EK-FC R9-290X - Acetal, EK-FC R9-290X Back... 
CoolingCoolingCoolingCooling
Koolance Ball Valve VLV-BL1X2 XSPC D5 Dual Bay Reservoir/Pump Combo Hardware Labs Black Ice GT Stealth 360mm Hardware Labs Black Ice SR-1 120 
CoolingCoolingCoolingCooling
XSPC EX240 2x120mm radiator 5 x Corsair SP120 High Performance 2 x Corsair SP120 PWM High Performance XSPC Raystorm 
CoolingCoolingOSMonitor
NZXT Sentry 2 fan controller PrimoFlex Advanced LRT 10ft Tubing - 7/16in. ID... Windows 10 Home 64-bit Samsung SyncMaster B2330H 23" 
MonitorKeyboardPowerCase
Philips 236G3DHSB 3D LCD LED 23" Razer BlackWidow Ultimate Seasonic X-1050 1050W Corsair Vengeance C70 Mid-Tower Gaming Case Gun... 
MouseAudio
Razer Imperator 2012 Realtek ALC898 8-Channel High Definition Audio ... 
CPUMotherboardGraphicsRAM
Intel Core i7 720QM Dell Studio 1557 Intel PM55 ATI Mobility Radeon HD 4500/5100 Series Samsung 2GB DDR3-1333 
RAMHard DriveOptical DriveCooling
Samsung 2GB DDR3-1333 Seagate ST9320325AS HL-DT-ST_DVD+-RW_GA11N Fan + Copper + Aluminum + Shin-Etsu G751 
OSMonitorKeyboardPower
Windows 7 Home Premium 64-bit 15.6" LCD (WXGA) InnoLux BT156GW01 Dell Studio 1557 Keyboard Dell 90W AC Adapter 
Audio
IDT High Definition Audio CODEC 
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Reply