Check the physical write-protect switch on the pen drive and turn it off
Try a different USB port or another computer
Open Command Prompt as administrator
Run `diskpart`
Type `list disk`
Type `select disk X` where X is the pen drive number
Type `attributes disk clear readonly`
Type `exit`
Open Registry Editor
Go to `HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDevicePolicies`
Set `WriteProtect` to `0`
If `StorageDevicePolicies` does not exist, create it and add a `DWORD (32-bit)` value named `WriteProtect` with value `0`
Restart the computer
Use Disk Management to delete partitions and recreate the volume
Format the pen drive using File Explorer or Diskpart
Check for antivirus or security software blocking writes
Update or reinstall USB drivers
Test the pen drive on another system to confirm hardware failure
Replace the pen drive if it remains write-protected