I downloaded an ISO from archive.org. At the rate I'm going now, I'll soon have the entire Internet downloaded. :-). Rather than waste a CD or DVD by burning of this ISO, I opened it as a Virtual Drive. Note: most compression programs like 7zip can also open these files. This will set up an ISO image to act like a CD/DVD and show the contents in File Explorer.
I decided on Virtual Clone Drive from here:
I've used it in the past and always had it on my Windows 7 system but never installed it on my Windows 10, until now.
But pay attention to the VirtualCloneDrive Setup: Installation Options. Pictured is the default settings. You can change these options as you see fit, but I just left them on the defaults.
When you get it installed, you'll notice the small Virtual CloneDrive icon down by the clock (or click on the small triangle to see the hidden icons).
If during the install screen you left the ISO option checked, then just double-click on your image file and it should mount and show the contents automatically. The first time, as in my case, sorry forgot to get a screenshot, it will ask you to pick a program to open your image with. Just pick Virtual CloneDrive if given the option also check Always use this program.
You can also mount an image by right-clicking on it and either clicking Open or Mount (Virtual CloneDrive F:) - note: your drive letter may be different depending on your system setup.
If you didn't associate Virtual CloneDrive, choose the latter option.
And that's it. In Explorer you should see the drive letter mounted on the right, in my example BD-ROM Drive (F:) 20190730_0141 and on the right-hand side the contents of the image.
When you want to eject or dismount the image, just right-click on click on Eject.
