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James Serra's Blog

James is currently a Senior Business Intelligence Architect/Developer and has over 20 years of IT experience. James started his career as a software developer, then became a DBA 12 years ago, and for the last five years he has been working extensively with Business Intelligence using the SQL Server BI stack (SSAS, SSRS, and SSIS). James has been at times a permanent employee, consultant, contractor, and owner of his own business. All these experiences along with continuous learning has helped James to develop many successful data warehouse and BI projects. James has earned the MCITP Business Developer 2008, MCITP Database Administrator 2008, and MCITP Database Developer 2008, and has a Bachelor of Science degree in Computer Engineering. His blog is at .

Problem copying large files to a USB flash drive?

I thought I would write a quick blog on a problem I see frequently: You try to copy a large file, such as the iso image of SQL Server, to a USB flash drive, and get the error message “There is not enough free space on the drive”.  But you know you have plenty of free space.  What is going on?

The answer is simple: your flash drive is formatted with the FAT32 file system.  This type of file system has a built-in limitation where the size of each individual file may not exceed 4GB.

The solution is simple: you need to replace the FAT32 file system on the drive with the NTFS file system, which does not have the 4GB file size limitation.  Simply format the USB flash drive with the NTFS file system.  Alternately, you can use a program like WinZip to split the large file into multiple smaller files.

More info:

Why can’t I copy large files over 4GB to my USB flash drive?

Why Can’t I Copy a Large File Despite Having Larger Free Space?

Transferring file higher than 4GB in FAT32 file system / Splitting a large file into smaller size files

Can’t copy File larger than 4GB on USB drive,Here is Solution


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