I don't have boot camp

Muhammet_Talha wrote:

How can I use "Windows"?

Windows for Intel x86-32 and Windows for Intel x86-64 will not work on Apple silicon and M1 Arm processors. At all.

There is presently no version of Windows for ARM64 available for sale for Apple Mac M1-based computers.

There is presently no version of Windows for ARM64 available with support for Apple Mac M1.

The only option here is an unsupported Microsoft beta of Windows for ARM64 (that may or may not ever become a supported product on Apple Mac M1 computers), and that only as a guest of a virtual machine, and all of that may stop working or disappear on little notice.

Only Macs with Intel chips have BootCamp Utility.

If you have a M1 Mac then Boot Camp is not supported on that model Mac. If you have an Intel Mac then Boot Camp Assistant is already installed.