If you want to download and install Java JDK 18 on Windows 11/10 computer, you will also have to set up a Path in Environment Variable.

All software fully updated. On Bootcamp is Windows 10, 64bit version, fully updated as well. - I need to install Java on this Windows partition, but fail to do so: ...

If you run into problems installing Java on Windows 7 or Windows 8, try installing Java as an administrator. To do so, download the offline installer and save it to an empty folder on your hard disk.

Learn how to fix The registry refers to a nonexistent Java Runtime Environment installation or the Runtime is corrupted error on Windows 11/10.