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The general procedure to reprogram your USB Flash Drive to add/remove write protection is as follows:ĭownload and Run Chipgenius and find out the VID and PID of your USB Drive. Most Mass Production tools are used to repair USB Flash Drives or to add or remove CDFS Partition Some of these MP Tools can also be used to add/remove write protection. However this procedure varies for all USB Flash Drives. You can try using Mass Production tools to reprogram the microcontroller in your USB Flash Drive. So do all these I/O device errors mean that these USB drives are just totally screwed? Is there any way to get more information about the problem?Īnswer: My answer to this question is similar to the answer I had given for this question Flipping the Removable Media bit - alternatives to BootIt?

Starting in safe mode with command prompt and running format, diskpart, and chkdsk.

HDD Low Level Format Tool: “Format Error occurred at offset 985,595,904: ?1117 – Device I/O error” and hundreds of similar errors.

See the System Event Log for more information.” (The System Event Log only contains the error: The IO operation at logical block address 0 for Disk 1 was retried.)

diskpart clean: “Diskpart has encountered an error: The request could not be performed because of an I/O device error.

Changing registry key HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDevicePolicies to 0.

HP USB Disk Storage Format Tool: “Device media is write-protected”.

Windows format: “The disk is write protected”.

Most of them work just fine, but a couple of them won’t let me format them because they are “write-protected.” There is no write protection switch on the device. I ordered a bunch of 1GB usb drives from a semi-shady Chinese company.

Question: What can I do if my USB flash drive is write-protected or read-only?(3 answers) ? Cannot format USB flash drive, everything claims it’s write protected ?(7 answers) ?Closed last month.