您可以使用Sysinternals Contig工具。它有一个-n开关，用于创建一个给定大小的新文件。与fsutil不同，它不需要管理特权。

您可以使用Sysinternals Contig工具。它有一个-n开关，用于创建一个给定大小的新文件。与fsutil不同，它不需要管理特权。

另一个GUI解决方案:WinHex。

“File” > “New” > “Desired file size” = [X]
“File” > “Save as” = [Name]

与一些已经提出的解决方案相反，它实际上是在设备上写入(空)数据。

它还允许用可选择的模式或随机数据填充新文件:

“Edit” > “Fill file” (or “Fill block” if a block is selected)

Use:

/*
Creates an empty file, which can take all of the disk
space. Just specify the desired file size on the
command line.
*/

#include <windows.h>
#include <stdlib.h>

int main (int argc, char* ARGV[])
{
    int size;
    size = atoi(ARGV[1]);
    const char* full = "fulldisk.dsk";
    HANDLE hf = CreateFile(full,
                           GENERIC_WRITE,
                           0,
                           0,
                           CREATE_ALWAYS,
                           0,
                           0);
    SetFilePointer(hf, size, 0, FILE_BEGIN);
    SetEndOfFile(hf);
    CloseHandle(hf);
    return 0;
}

临时文件应该存储在Windows临时文件夹中。根据Rod的回答，您可以使用下面的一行代码创建一个5 GB的临时文件，该文件返回文件名

[System.IO.Path]::GetTempFileName() | % { [System.IO.File]::Create($_).SetLength(5gb).Close;$_ } | ? { $_ }

解释:

[System.IO.Path]::GetTempFileName() generates a random filename with random extension in the Windows Temp Folder The Pipeline is used to pass the name to [System.IO.File]::Create($_) which creates the file The file name is set to the newly created file with .SetLength(5gb). I was a bit surprised to discover, that PowerShell supports Byte Conversion, which is really helpful. The file handle needs to be closed with .close to allow other applications to access it With ;$_ the filename is returned and with | ? { $_ } it is ensured that only the filename is returned and not the empty string returned by [System.IO.File]::Create($_)

普通的C…这是在Windows XX上的MinGW GCC下构建的，应该可以工作 在任何“通用”C平台上。

它生成一个指定大小的空文件。生成的文件不仅仅是一个目录空间占用者条目，而且实际上占用了指定数量的字节。这是快速的，因为除了在关闭前写入字节外，没有实际的写入发生。

我的实例生成了一个全是0的文件——这可能因平台而异;这 程序本质上为挂起的任何数据设置目录结构 周围。

#include <stdio.h>
#include <stdlib.h>

FILE *file;

int main(int argc, char **argv)
{
    unsigned long  size;

    if(argc!=3)
    {
        printf("Error ... syntax: Fillerfile  size  Fname \n\n");
        exit(1);
    }

    size = atoi(&*argv[1]);

    printf("Creating %d byte file '%s'...\n", size, &*argv[2]);

    if(!(file = fopen(&*argv[2], "w+")))
    {
        printf("Error opening file %s!\n\n", &*argv[2]);
        exit(1);
    }

    fseek(file, size-1, SEEK_SET);
    fprintf(file, "%c", 0x00);
    fclose(file);
}