To Repair Any Corrupt SD Card Or Pendrive Follow The Steps...
If Your USB Drive Is Corrupted This Will Show USB Capacity Is 121 MB Or other Problems.
Step No 1: Connect Your USB To Your PC.
Step No 2: Open The Command Prompt.
Step No 3: Type diskpart And Hit Enter.
Step No 4: Allow The Popup Notification. Then Diskpart Command Will Be Opened.
Step No 5: Type List Disk And Hit Enter.
Step No 6: Then You Can Show Your USB Drive And Your Hard Disk.
Step No 7: Then Type select disk <Your Disk Number> And Hit Enter.
Step No 8: Then Type Clean And Hit Enter Button.[This Will Clear Your USB Drive All Data]
Then Your USB Drive Will Be Repaired.