Formatting is the only solution left when you have tried all methods to fix the corrupt USB flash drive. Although it erases all your data present on the disk, but saves your USB drive and gives it a new life free from viruses, trojans and all other crappy stuffs. Now, if your USB is corrupted in a way that once you do a right click and format, it displays a message saying. Windows was unable to complete the format Step 1: – First of all open run command box by searching it in windows search box. Step 2: – Now, write diskpart and hit enter. Step 3 : – Once Diskpart is open. Follow the process given below by writing the commands, one by one. list disk Now, it will list Disk 0 and Disk 1 in your PC. Clearly Disk 0 is your hard disk and Disk 1 is the USB flash drive. Now, write the commands given below One by One. Select disk 1 clean create partition primary active select partition 1 format fs=fat32 In the a...