Quickly create large file on a Windows system

This article will help to quickly generate files of a specific file size as needed for various testing purposes.

The scripts below (ranked fastest to slowest) are used to create a dummy file of. # varying sizes and of different contents. Null/Numeric/Binary data.

You can use the for loop in PowerShell to create them. Create ten files with 10MB in size and the file named formatted as test0. zip, test1.

Use the fsutil command to create a file of the specified size using the Windows command prompt. The file size for this command is specified in bytes.

PowerShell: $f = new-object System.IO.FileStream c:-temp-test.dat, Create, ReadWrite $f.SetLength(42MB) $f.Close(). This will create a file ...

You can use the Sysinternals Contig tool. It has a -n switch which creates a new file of a given size. Unlike fsutil, it doesn't require administrative ...

It's really easy to generate multiple files with different file sizes using PowerShell; you may refer to the command below.

Let's explore a simple way to create a dummy file, say with a 20 GB size for any testing purposes in our expected file path in a local desktop using the command ...

If you need to create a large file with random data for testing purposes, you can use PowerShell or PowerShell Core to quickly generate it.

Create a Dummy File with a Specific Size using the FSUTIL command. Provide the size in bytes. The above command will create a 10 MB file.