Never download tools again! Quickly Generate Large Test Files in Windows!

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Never download tools again! Quickly Generate Large Test Files in Windows!

https://tweaks.com/windows/62755/quickly-generate-large-test-files-in-windows/

Never download another 100mb test file or waste time searching for a large file.  Sometimes you need a large file fast to test data transfers or disk performance. Windows includes a utility that allows you to quickly generate a file of any size instantly. 


Open an administrative level command prompt. 


Run the following command:


fsutil file createnew <file> <size in bytes>

For example, this command will create a 1GB file called 1gb.test on my desktop:


fsutil file createnew c:\users\steve\desktop\1gb.test 1073741824

The key is to input the size of the file in bytes so here are some common file sizes to save you from math:


1 MB = 1048576 bytes


100 MB = 104857600 bytes


1 GB = 1073741824 bytes


10 GB = 10737418240 bytes


100 GB =107374182400 bytes


1 TB = 1099511627776 bytes


10 TB =10995116277760 bytes


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