A single file larger than 4G cannot be installed on a fat-formatted USB flash drive, only in NTFS format.
Then the following shows you two ways to change the format of the USB flash drive:
Open My Computer, find your USB flash drive, right-click on the USB Drive Select "Properties"--Select "Hardware" click "Your U disk Letter"--"Properties" select "Policy" Check to "optimize for improved performance" last Click OK. So you can right-click to format NTFS.
Click-Start-run---input cmd----input convert x:/fs:ntfs, where X is your USB drive letter, is it simple?
Precautions
What is the difference between the two methods, the latter is lossless format, the former format is finished, there is nothing inside. But the latter will create fragments, affecting the performance of the USB stick, while the former is to note that the Nfts state, the file transfer speed, but can not directly unplug the USB drive, there will be a chance to lose files.