My USB drive is saying it is not recognized and needs to be formatted. If I format it, it will erase all of my files. How to recover data from corrupted USB flash driive and fix it?
In this situation, you must do this thing to protect your data safety: Do NOT format the drive, because formatting may increase the difficulty of complete data recovery.
Fix corrupted USB flash drive using CMD
Sometimes it is very helpful to recover data from corrupted flash drive with Windows command line (CMD).
1. Click "Run" at start menu, then type "cmd" in the input box. A command prompt will be displayed.
2. Type the command "CHKDSK [driveletter] /r" in the command prompt. For example, The drive letter of your USB flash drive is "F", you should type command "CHKDSK F: /r" in the command prompt.
3. The command "CHKDSK" checks the specified disk for structure corruption. The paramter "/r" tells the command to repair the issues it finds.
4. When it is almost complete it will ask you if you want to save lost chains into files. Go ahead and choose "Yes". Chkdsk will report "What it has done" and go to My Computer and check if your corrupted USB flash drive has been fixed.
But sometimes, CHKDSK command can't repair logical error on the corrupted USB flash drive, in this situation, you a professioinal data recovery software to recover data from corrupted USB flash drive.
Recover data from formatted, corrupted USB flash drive with M3 Data Recovery
M3 Data Recovery is a professional data recovery software which can recover data from formatted, corrupted USB flash drive, hard drive, external hard drive, memory card, memory stick, USB stick, CF card, etc. in Windows XP/Vista/7/8/10 and Windows Server 2016/2012/2008/2003.
Tutorial to recover data from formatted, corrupted USB flash drive with M3 Data Recovery
Step 1: Insert the corrupted USB flash drive into your computer.
Step 2: Download, install and launch M3 Data Recovery. After that, choose Data Recovery module on home window.
Step 3: Select corrupted USB flash drive and click Next to scan lost data from corrupted USB flash drive.
Step 4: Check the found files and click Reocver button to recover data from corrupted USB flash drive.
After data recovery from corrupted USB flash drive is successfully, please right click corrupted USB flash drive in My Computer or This PC and then select "Format..." to format it, it will be working again after format completes.