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: This is a common issue for this specific device model.
Find the disk number that matches your drive's storage capacity (e.g., Disk 2) and select it: select disk X Use code with caution. (Replace with your specific flash drive number) Clear any operating system-imposed read restrictions: attributes disk clear readonly Use code with caution.
Every USB device uses standardized identification codes managed by the USB Implementers Forum (USB-IF) . These codes are burned directly into the controller firmware:
If the drive still returns a write-protection error during a low-level format, the drive's internal firmware has locked down permanently due to flash cell wear. In this state, the drive cannot be repaired with software or flashed with new firmware. Your best option is to copy your files off the drive and replace it.
is a compact, capless USB drive designed for basic file transfers and storage. usb device id vid 0781 pid 5567
This technical identity remains identical whether you own the 4GB, 8GB, 16GB, 32GB, or 64GB storage capacity variants of the drive. Technical Specifications & Performance Summary
The Cruzer Blade is a popular budget-friendly USB 2.0 drive. Below is a summary of its common technical specifications.
Every USB device uses standard identification strings governed by the USB Implementers Forum.
Leo inserted the drive into his air-gapped analysis machine. The system registry read the IDs instantly. VID_0781&PID_5567 . A chameleon. The hardware said SanDisk, but the controller’s behavior was wrong. The read/write latency was too slow, as if the data was passing through an extra layer. A hardware keylogger? No. Worse. A BadUSB. : This is a common issue for this specific device model
: The system reports "The disk is write-protected" when you try to copy files to or format the drive. Common Cause : The drive's controller may have erroneously entered a read-only state, often due to file system corruption. Solutions :
This WMIC command pulls the exact plug-and-play identification string. The operating system matches VID_0781&PID_5567 against its local driver store to route the device to the standard usbstor.inf architecture. Common Issues and Solutions
The exact device architecture utilizes a legacy USB interface framework engineered primarily for general file transfers rather than high-throughput boot environments: Specification Parameter Value / Metric Technical Context USB 2.0 (High-Speed) Maximum theoretical bandwidth capped at 480 Mbps. Current Consumption Low power draw safe for unpowered external hubs. Standard Capacities 4GB to 128GB Formatted with standard FAT32 by default. Typical Read Speed ~15 - 25 MB/s Dependent on host controller performance. Typical Write Speed ~4 - 10 MB/s Significantly throttled during multi-file operations. Understanding the SanDisk Write-Protection Locking Fault
Cruzer Blade — USB 0781:5567 — DeviceHunt. Home / SanDisk Corp. / 5567. Cruzer Blade. USB USB\VID_0781&PID_5567. DeviceHunt Your best option is to copy your files
If the device appears in Device Manager under VID_0781&PID_5567 but shows up as "No Media" or "0 Bytes" in Windows Disk Management, the file system or driver stacking layer has corrupted. To force your system to clear out bad mounting pathways: sandisk pendrive problem on disk write is protected
: You can view real-world benchmarks, including read/write speeds for various capacities (16GB, 32GB, 64GB, etc.), on the NirSoft USB 3.0 Speed Test database. 2. Troubleshooting & Guides
If your device exhibits these, the hardware is failing. No driver update can fix it. Transfer data off immediately and replace the drive.