To re-format the USB drive to the NTFS file system using a Windows PC . . .
Insert the drive into a USB port.
Go to File Explorer.
Right-click on the drive's icon.
Select 'Format'.
In the File System menu, select 'NTFS'.
Click 'Start'.
Windows machines can both read and write files with NTFS drives. Macs can only read from them. If you're plugging the drive into your telly, or another type of recording device, then (unless the instruction manual helps) you'll simply have to try it to see if it will work.