Question about Memory Cards & USB Flash Drives
First of all, I'm running a Windows Vista Home Premium 32-bit Asus Notebook.
My pen drive (which is FAT32 formatted as the manufacturer suggests, by the way) used to work in the past, but now, without a reason, it stopped "working". I mean, it IS working but it isn't showing up on "My Computer". I've checked the Computer Management > Disk Management and it's there, but I can't Open or Explore it. However, if I order it to mount in a selected folder in my HD (D:/Test) it mounts and show up the files as it used to show!! And I can add/remove files without a problem, but I want it to work as it used to!
When browsing through the Device Manager, I've found a "!" yellow marked simbol under "Portable Devices", called USB Mass Storage Service or something (I can't really remember exactly the name, I'll explain why now). Then I right-clicked it and went to Properties under the General Tab and it was there: "This device cannot start. (Code 10)". Then I clicked the dumb "Check for solutions" just to see what I expected: no solution. Then I tried to unninstal it then reinserting the drive to reinstall drivers for it. But then, the name changed to "Microsoft WPD FileSystem Volume Driver". I've tried unninstalling all the usb controlling devices, then restart the pc and waited for the drivers reinstall... but nothing changed.
I've tried system restore too but it didn't work..... (actually the system restore said it got a error by the end of the restore, so it didn't restore anything).
I forgot to mention that I can open other pen drives on my pc, just this one doesn't work. And the problem isn't with the flash drive, 'cause it shows up in Windows XP. (Tried reformating the drive and reinserting it on Windows Vista but didn't work as well).
Please, any clues?
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VIRUS OR TROJAN INFECTIONS:
Virus or trojans can run some process that keeps running in background. This not only harms the computer, but also prevents the pen drive from formatting as it shows that the drive is in use. Remove and re-insert thepen drive, don't double click on drive and cancel autorun operations if it starts automatically. Run a virus scan on pen drive, this will help fix the issue. Now format the pen drive.
CORRUPTED FLASH CHIPS ON PEN DRIVE:
If the pen drive is not detected at all, or shows a less capacity, then there are high chances that its a chipcorruption. Flash chips are the actual hardware components that save the data. A physical or electrical or electromagnetic damage to these chips make the pen drive faulty. This can happen because of voltage fluctuations and faulty USB ports. In such case, get the flash drive replaced if its under warranty as it can not be fixed otherwise.
FAKE PEN DRIVES:
Sounds a bit un-believable but true. There are a lot of pen drives in the market which are of very cheap quality which are fake copies of some known brands. Beware of such pen-drives. Always purchase pen-drives or memory-cards from a reliable source with bill and warranty to avoid any mess later.
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