Check the box before 'Use a password to unlock the drive' and enter a password twice. Go to 'This PC', right-click your USB drive, and select 'Turn BitLocker On'. Connect your USB flash drive to your computer. You can follow the details below to lock your USB flash drive in Windows 10. In addition to the Properties, Windows 10 also provides you with a BitLocker that can protect a USB drive with a password. Click 'Backup now' and back up the encryption key to another drive. Then, a window pops up telling you that to back up files.

Then, go back to the main window, click 'Apply'. Then, select 'Encrypt contents to secure data'. In the General tab, and then click 'Advanced'. Right-click the file or folder and select 'Properties' in the drop-down menu. Go to 'This PC' and open your USB flash drive. Follow the detailed guide below to lock your flash drive.

All you need to do is to right-click your USB files and click the encrypt button. In fact, Windows offers you a built-in tool to lock your USB flash drive files. This article summarizes the easiest ways to protect or lock files and folders on a USB flash drive. So how can you protect a flash drive by locking it with simple steps? When you are enjoying the convenience of the USB flash drive, you may ignore the security of your device. No matter you are a businessman, an employee, a student, or even a housewife, a USB flash drive and computer can assist you in your routine work. In our daily life, you often use USB flash drives.

Lock a folder on android