What is the source of the trial download?
They should post the system requirements: i.e., how much free space needs to be available on the host drive.
And do be aware that many such free trials often attempt to load additional applications and software. Some of which may be malicious.
Go to Microsoft's website - verify the details, requirements, and terms of the trial version.
Then download the trial version only via Microsoft if your system meets the requirements and you do decide to go forward.