Watch your favorite movies anywhere you go by copying them to a Flash drive and playing them in Windows Media Player, the native media player in Windows. You can store several movies on a Flash drive, depending on its size. To store large, 1080p, movies, convert the drive to the NTFS file format by formatting it in Windows 8.1 or 7. The FAT32 file format can handle only files that are smaller than 4GB. Formatting the drive erases everything on it; you may not be able to recover important data.
Expand the Power User menu in Windows 8.1 by pressing Windows-X, and then select File Explorer to launch the File Explorer utility.
In Windows 7, click Start and select Computer from the menu to launch Windows Explorer.
Connect the USB flash drive to your computer by plugging it into a free USB port. If possible, avoid using USB hubs and use a port on the back of the computer. Windows detects the flash drive in a few seconds and, if necessary, installs the appropriate drivers for it. The OS assigns a drive letter to the device in File Explorer.
Right-click the drive assigned by Windows to the device and select Format from the context menu to display the Format dialog.
Select NTFS from the File System box if you want to store files larger than 4GB on the drive. The NTFS file system can handle smaller files as well.
Check the Quick Format box to format the drive without checking it for errors. Deselecting this box increases the time it takes Windows to format the drive; the time increases significantly if you format large drives.
Optionally, change the name of the flash drive from the Volume Label field.
Click the Start button to start formatting the drive. The process may take a few minutes, depending on the size of the drive.
Open the folder that contains the movies you wish to transfer to the flash drive, and then select the files. To select everything in the folder, press Ctrl-A. To select several items, hold Ctrl and click each file.
Right-click one of the selected files and choose Copy from the context menu to copy the files to the clipboard or use the keyboard shortcut Ctrl-C. To erase the movies from the hard drive when you transfer them to the drive, select Cut instead of Copy, or use the keyboard shortcut Ctrl-X.
Select the flash drive from the left pane of the File Explorer, right-click on an empty spot in the right pane and select Paste from the context menu to transfer the movies from the clipboard to the drive. Alternatively, select the drive and press Ctrl-V.
Before you disconnect the flash drive from the computer, right-click its icon in the system tray, and click Eject to safely eject it.
To play back the media in Windows Media Player, connect the USB flash drive to the computer, launch the software, press Ctrl-O to display the Open dialog, select the movie and click Open.